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Finding the Fourth Proportional to 70,064.61, 96,691.22 and 38,235.56

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Solution

The fourth proportional to 70,064.61, 96,691.22 and 38,235.56 is: 52,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,064.61 : 96,691.22 = 38,235.56 : x
  2. Step 2: Convert to fraction form
    70,064.61/96,691.22 = 38,235.56/x
  3. Step 3: Cross multiply
    70,064.61x = 96,691.22 × 38,235.56
  4. Step 4: Simplify right side
    70,064.61x = 3,697,042,752.61
  5. Step 5: Solve for x
    x = 3,697,042,752.61/70,064.61
  6. Step 6: Final answer
    x = 52,766.20

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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.