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Finding the Fourth Proportional to 59,891.10, 89,793.45 and 39,126.30

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Solution

The fourth proportional to 59,891.10, 89,793.45 and 39,126.30 is: 58,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,891.10 : 89,793.45 = 39,126.30 : x
  2. Step 2: Convert to fraction form
    59,891.10/89,793.45 = 39,126.30/x
  3. Step 3: Cross multiply
    59,891.10x = 89,793.45 × 39,126.30
  4. Step 4: Simplify right side
    59,891.10x = 3,513,285,462.74
  5. Step 5: Solve for x
    x = 3,513,285,462.74/59,891.10
  6. Step 6: Final answer
    x = 58,661.23

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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.