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Finding the Fourth Proportional to 40,354.91, 60,542.09 and 12,652.91

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Solution

The fourth proportional to 40,354.91, 60,542.09 and 12,652.91 is: 18,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,354.91 : 60,542.09 = 12,652.91 : x
  2. Step 2: Convert to fraction form
    40,354.91/60,542.09 = 12,652.91/x
  3. Step 3: Cross multiply
    40,354.91x = 60,542.09 × 12,652.91
  4. Step 4: Simplify right side
    40,354.91x = 766,033,552.72
  5. Step 5: Solve for x
    x = 766,033,552.72/40,354.91
  6. Step 6: Final answer
    x = 18,982.41

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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.