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Finding the Fourth Proportional to 60,874, 91,348.37 and 25,813.66

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Solution

The fourth proportional to 60,874, 91,348.37 and 25,813.66 is: 38,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,874 : 91,348.37 = 25,813.66 : x
  2. Step 2: Convert to fraction form
    60,874/91,348.37 = 25,813.66/x
  3. Step 3: Cross multiply
    60,874x = 91,348.37 × 25,813.66
  4. Step 4: Simplify right side
    60,874x = 2,358,035,764.73
  5. Step 5: Solve for x
    x = 2,358,035,764.73/60,874
  6. Step 6: Final answer
    x = 38,736.34

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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.