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Finding the Fourth Proportional to 60,542.40, 90,770.40 and 34,255.20

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Solution

The fourth proportional to 60,542.40, 90,770.40 and 34,255.20 is: 51,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,542.40 : 90,770.40 = 34,255.20 : x
  2. Step 2: Convert to fraction form
    60,542.40/90,770.40 = 34,255.20/x
  3. Step 3: Cross multiply
    60,542.40x = 90,770.40 × 34,255.20
  4. Step 4: Simplify right side
    60,542.40x = 3,109,358,206.08
  5. Step 5: Solve for x
    x = 3,109,358,206.08/60,542.40
  6. Step 6: Final answer
    x = 51,358.36

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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.