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Finding the Fourth Proportional to 28,035.52, 42,053.38 and 8,314.25

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Solution

The fourth proportional to 28,035.52, 42,053.38 and 8,314.25 is: 12,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.52 : 42,053.38 = 8,314.25 : x
  2. Step 2: Convert to fraction form
    28,035.52/42,053.38 = 8,314.25/x
  3. Step 3: Cross multiply
    28,035.52x = 42,053.38 × 8,314.25
  4. Step 4: Simplify right side
    28,035.52x = 349,642,083.61
  5. Step 5: Solve for x
    x = 349,642,083.61/28,035.52
  6. Step 6: Final answer
    x = 12,471.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.