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Finding the Fourth Proportional to 70,189.62, 96,861.71 and 38,358.52

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Solution

The fourth proportional to 70,189.62, 96,861.71 and 38,358.52 is: 52,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,189.62 : 96,861.71 = 38,358.52 : x
  2. Step 2: Convert to fraction form
    70,189.62/96,861.71 = 38,358.52/x
  3. Step 3: Cross multiply
    70,189.62x = 96,861.71 × 38,358.52
  4. Step 4: Simplify right side
    70,189.62x = 3,715,471,694.01
  5. Step 5: Solve for x
    x = 3,715,471,694.01/70,189.62
  6. Step 6: Final answer
    x = 52,934.77

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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.