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Finding the Fourth Proportional to 60,976.31, 91,388.32 and 29,380.53

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Solution

The fourth proportional to 60,976.31, 91,388.32 and 29,380.53 is: 44,034.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,976.31 : 91,388.32 = 29,380.53 : x
  2. Step 2: Convert to fraction form
    60,976.31/91,388.32 = 29,380.53/x
  3. Step 3: Cross multiply
    60,976.31x = 91,388.32 × 29,380.53
  4. Step 4: Simplify right side
    60,976.31x = 2,685,037,546.66
  5. Step 5: Solve for x
    x = 2,685,037,546.66/60,976.31
  6. Step 6: Final answer
    x = 44,034.11

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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.