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Finding the Fourth Proportional to 28,263.96, 39,000.90 and 16,324.92

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Solution

The fourth proportional to 28,263.96, 39,000.90 and 16,324.92 is: 22,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.96 : 39,000.90 = 16,324.92 : x
  2. Step 2: Convert to fraction form
    28,263.96/39,000.90 = 16,324.92/x
  3. Step 3: Cross multiply
    28,263.96x = 39,000.90 × 16,324.92
  4. Step 4: Simplify right side
    28,263.96x = 636,686,572.43
  5. Step 5: Solve for x
    x = 636,686,572.43/28,263.96
  6. Step 6: Final answer
    x = 22,526.45

Related Problems

Find fourth proportional to 14,131.98, 19,500.45 and 8,162.46
Half scale
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Double scale
Find fourth proportional to 28,264.96, 39,002.28 and 16,325.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.