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Finding the Fourth Proportional to 60,338.88, 90,489.12 and 25,272

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Solution

The fourth proportional to 60,338.88, 90,489.12 and 25,272 is: 37,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,338.88 : 90,489.12 = 25,272 : x
  2. Step 2: Convert to fraction form
    60,338.88/90,489.12 = 25,272/x
  3. Step 3: Cross multiply
    60,338.88x = 90,489.12 × 25,272
  4. Step 4: Simplify right side
    60,338.88x = 2,286,841,040.64
  5. Step 5: Solve for x
    x = 2,286,841,040.64/60,338.88
  6. Step 6: Final answer
    x = 37,899.96

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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.