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Finding the Fourth Proportional to 28,808.52, 39,755.52 and 16,061.55

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Solution

The fourth proportional to 28,808.52, 39,755.52 and 16,061.55 is: 22,164.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.52 : 39,755.52 = 16,061.55 : x
  2. Step 2: Convert to fraction form
    28,808.52/39,755.52 = 16,061.55/x
  3. Step 3: Cross multiply
    28,808.52x = 39,755.52 × 16,061.55
  4. Step 4: Simplify right side
    28,808.52x = 638,535,272.26
  5. Step 5: Solve for x
    x = 638,535,272.26/28,808.52
  6. Step 6: Final answer
    x = 22,164.81

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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.