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Finding the Fourth Proportional to 70,049.34, 96,668.41 and 38,218.90

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Solution

The fourth proportional to 70,049.34, 96,668.41 and 38,218.90 is: 52,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.34 : 96,668.41 = 38,218.90 : x
  2. Step 2: Convert to fraction form
    70,049.34/96,668.41 = 38,218.90/x
  3. Step 3: Cross multiply
    70,049.34x = 96,668.41 × 38,218.90
  4. Step 4: Simplify right side
    70,049.34x = 3,694,560,294.95
  5. Step 5: Solve for x
    x = 3,694,560,294.95/70,049.34
  6. Step 6: Final answer
    x = 52,742.26

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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.