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Finding the Fourth Proportional to 39,059.52, 53,901.87 and 21,154.12

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Solution

The fourth proportional to 39,059.52, 53,901.87 and 21,154.12 is: 29,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,059.52 : 53,901.87 = 21,154.12 : x
  2. Step 2: Convert to fraction form
    39,059.52/53,901.87 = 21,154.12/x
  3. Step 3: Cross multiply
    39,059.52x = 53,901.87 × 21,154.12
  4. Step 4: Simplify right side
    39,059.52x = 1,140,246,531.11
  5. Step 5: Solve for x
    x = 1,140,246,531.11/39,059.52
  6. Step 6: Final answer
    x = 29,192.54

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