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Finding the Fourth Proportional to 16,263.90, 22,444.20 and 8,811.90

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Solution

The fourth proportional to 16,263.90, 22,444.20 and 8,811.90 is: 12,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,263.90 : 22,444.20 = 8,811.90 : x
  2. Step 2: Convert to fraction form
    16,263.90/22,444.20 = 8,811.90/x
  3. Step 3: Cross multiply
    16,263.90x = 22,444.20 × 8,811.90
  4. Step 4: Simplify right side
    16,263.90x = 197,776,045.98
  5. Step 5: Solve for x
    x = 197,776,045.98/16,263.90
  6. Step 6: Final answer
    x = 12,160.43

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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.