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Finding the Fourth Proportional to 60,148.60, 90,174.84 and 28,542.76

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Solution

The fourth proportional to 60,148.60, 90,174.84 and 28,542.76 is: 42,791.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,148.60 : 90,174.84 = 28,542.76 : x
  2. Step 2: Convert to fraction form
    60,148.60/90,174.84 = 28,542.76/x
  3. Step 3: Cross multiply
    60,148.60x = 90,174.84 × 28,542.76
  4. Step 4: Simplify right side
    60,148.60x = 2,573,838,816.16
  5. Step 5: Solve for x
    x = 2,573,838,816.16/60,148.60
  6. Step 6: Final answer
    x = 42,791.33

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1.5x scale

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.