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Finding the Fourth Proportional to 59,472.31, 89,208.62 and 20,057.11

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Solution

The fourth proportional to 59,472.31, 89,208.62 and 20,057.11 is: 30,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,472.31 : 89,208.62 = 20,057.11 : x
  2. Step 2: Convert to fraction form
    59,472.31/89,208.62 = 20,057.11/x
  3. Step 3: Cross multiply
    59,472.31x = 89,208.62 × 20,057.11
  4. Step 4: Simplify right side
    59,472.31x = 1,789,267,104.29
  5. Step 5: Solve for x
    x = 1,789,267,104.29/59,472.31
  6. Step 6: Final answer
    x = 30,085.72

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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.