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Finding the Fourth Proportional to 66,617.54, 100,053.48 and 38,593.88

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Solution

The fourth proportional to 66,617.54, 100,053.48 and 38,593.88 is: 57,964.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,617.54 : 100,053.48 = 38,593.88 : x
  2. Step 2: Convert to fraction form
    66,617.54/100,053.48 = 38,593.88/x
  3. Step 3: Cross multiply
    66,617.54x = 100,053.48 × 38,593.88
  4. Step 4: Simplify right side
    66,617.54x = 3,861,452,000.70
  5. Step 5: Solve for x
    x = 3,861,452,000.70/66,617.54
  6. Step 6: Final answer
    x = 57,964.49

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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.