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Finding the Fourth Proportional to 84,757.74, 127,087.17 and 25,575.66

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Solution

The fourth proportional to 84,757.74, 127,087.17 and 25,575.66 is: 38,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,757.74 : 127,087.17 = 25,575.66 : x
  2. Step 2: Convert to fraction form
    84,757.74/127,087.17 = 25,575.66/x
  3. Step 3: Cross multiply
    84,757.74x = 127,087.17 × 25,575.66
  4. Step 4: Simplify right side
    84,757.74x = 3,250,338,250.28
  5. Step 5: Solve for x
    x = 3,250,338,250.28/84,757.74
  6. Step 6: Final answer
    x = 38,348.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.