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Finding the Fourth Proportional to 41,151.74, 61,721.29 and 13,068.15

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Solution

The fourth proportional to 41,151.74, 61,721.29 and 13,068.15 is: 19,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,151.74 : 61,721.29 = 13,068.15 : x
  2. Step 2: Convert to fraction form
    41,151.74/61,721.29 = 13,068.15/x
  3. Step 3: Cross multiply
    41,151.74x = 61,721.29 × 13,068.15
  4. Step 4: Simplify right side
    41,151.74x = 806,583,010.57
  5. Step 5: Solve for x
    x = 806,583,010.57/41,151.74
  6. Step 6: Final answer
    x = 19,600.22

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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.