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Finding the Fourth Proportional to 60,135.60, 82,981.92 and 34,635.36

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Solution

The fourth proportional to 60,135.60, 82,981.92 and 34,635.36 is: 47,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,135.60 : 82,981.92 = 34,635.36 : x
  2. Step 2: Convert to fraction form
    60,135.60/82,981.92 = 34,635.36/x
  3. Step 3: Cross multiply
    60,135.60x = 82,981.92 × 34,635.36
  4. Step 4: Simplify right side
    60,135.60x = 2,874,108,672.69
  5. Step 5: Solve for x
    x = 2,874,108,672.69/60,135.60
  6. Step 6: Final answer
    x = 47,793.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.