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Finding the Fourth Proportional to 38,969.72, 58,453.98 and 36,479.24

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Solution

The fourth proportional to 38,969.72, 58,453.98 and 36,479.24 is: 54,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.72 : 58,453.98 = 36,479.24 : x
  2. Step 2: Convert to fraction form
    38,969.72/58,453.98 = 36,479.24/x
  3. Step 3: Cross multiply
    38,969.72x = 58,453.98 × 36,479.24
  4. Step 4: Simplify right side
    38,969.72x = 2,132,356,765.38
  5. Step 5: Solve for x
    x = 2,132,356,765.38/38,969.72
  6. Step 6: Final answer
    x = 54,718.30

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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.