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Finding the Fourth Proportional to 60,735.20, 91,128 and 27,432.32

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Solution

The fourth proportional to 60,735.20, 91,128 and 27,432.32 is: 41,159.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,735.20 : 91,128 = 27,432.32 : x
  2. Step 2: Convert to fraction form
    60,735.20/91,128 = 27,432.32/x
  3. Step 3: Cross multiply
    60,735.20x = 91,128 × 27,432.32
  4. Step 4: Simplify right side
    60,735.20x = 2,499,852,456.96
  5. Step 5: Solve for x
    x = 2,499,852,456.96/60,735.20
  6. Step 6: Final answer
    x = 41,159.86

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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.