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Finding the Fourth Proportional to 69,503.98, 95,914.84 and 38,876.71

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Solution

The fourth proportional to 69,503.98, 95,914.84 and 38,876.71 is: 53,649.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,503.98 : 95,914.84 = 38,876.71 : x
  2. Step 2: Convert to fraction form
    69,503.98/95,914.84 = 38,876.71/x
  3. Step 3: Cross multiply
    69,503.98x = 95,914.84 × 38,876.71
  4. Step 4: Simplify right side
    69,503.98x = 3,728,853,419.38
  5. Step 5: Solve for x
    x = 3,728,853,419.38/69,503.98
  6. Step 6: Final answer
    x = 53,649.49

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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.