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Finding the Fourth Proportional to 38,951.60, 58,456.20 and 25,799.60

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Solution

The fourth proportional to 38,951.60, 58,456.20 and 25,799.60 is: 38,718.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,951.60 : 58,456.20 = 25,799.60 : x
  2. Step 2: Convert to fraction form
    38,951.60/58,456.20 = 25,799.60/x
  3. Step 3: Cross multiply
    38,951.60x = 58,456.20 × 25,799.60
  4. Step 4: Simplify right side
    38,951.60x = 1,508,146,577.52
  5. Step 5: Solve for x
    x = 1,508,146,577.52/38,951.60
  6. Step 6: Final answer
    x = 38,718.48

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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.