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Finding the Fourth Proportional to 69,523.17, 95,946.89 and 39,308.78

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Solution

The fourth proportional to 69,523.17, 95,946.89 and 39,308.78 is: 54,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,523.17 : 95,946.89 = 39,308.78 : x
  2. Step 2: Convert to fraction form
    69,523.17/95,946.89 = 39,308.78/x
  3. Step 3: Cross multiply
    69,523.17x = 95,946.89 × 39,308.78
  4. Step 4: Simplify right side
    69,523.17x = 3,771,555,234.02
  5. Step 5: Solve for x
    x = 3,771,555,234.02/69,523.17
  6. Step 6: Final answer
    x = 54,248.90

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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.