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Finding the Fourth Proportional to 60,385.32, 90,543.42 and 25,295.40

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Solution

The fourth proportional to 60,385.32, 90,543.42 and 25,295.40 is: 37,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,385.32 : 90,543.42 = 25,295.40 : x
  2. Step 2: Convert to fraction form
    60,385.32/90,543.42 = 25,295.40/x
  3. Step 3: Cross multiply
    60,385.32x = 90,543.42 × 25,295.40
  4. Step 4: Simplify right side
    60,385.32x = 2,290,332,026.27
  5. Step 5: Solve for x
    x = 2,290,332,026.27/60,385.32
  6. Step 6: Final answer
    x = 37,928.62

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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.