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Finding the Fourth Proportional to 61,891.29, 85,401.56 and 36,382.52

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Solution

The fourth proportional to 61,891.29, 85,401.56 and 36,382.52 is: 50,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,891.29 : 85,401.56 = 36,382.52 : x
  2. Step 2: Convert to fraction form
    61,891.29/85,401.56 = 36,382.52/x
  3. Step 3: Cross multiply
    61,891.29x = 85,401.56 × 36,382.52
  4. Step 4: Simplify right side
    61,891.29x = 3,107,124,269.19
  5. Step 5: Solve for x
    x = 3,107,124,269.19/61,891.29
  6. Step 6: Final answer
    x = 50,202.93

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Why These Related Problems?

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