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Finding the Fourth Proportional to 52,539.71, 72,505.04 and 28,666.89

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Solution

The fourth proportional to 52,539.71, 72,505.04 and 28,666.89 is: 39,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,539.71 : 72,505.04 = 28,666.89 : x
  2. Step 2: Convert to fraction form
    52,539.71/72,505.04 = 28,666.89/x
  3. Step 3: Cross multiply
    52,539.71x = 72,505.04 × 28,666.89
  4. Step 4: Simplify right side
    52,539.71x = 2,078,494,006.13
  5. Step 5: Solve for x
    x = 2,078,494,006.13/52,539.71
  6. Step 6: Final answer
    x = 39,560.44

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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.