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Finding the Fourth Proportional to 25,648.60, 38,470.97 and 9,008.78

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Solution

The fourth proportional to 25,648.60, 38,470.97 and 9,008.78 is: 13,512.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.60 : 38,470.97 = 9,008.78 : x
  2. Step 2: Convert to fraction form
    25,648.60/38,470.97 = 9,008.78/x
  3. Step 3: Cross multiply
    25,648.60x = 38,470.97 × 9,008.78
  4. Step 4: Simplify right side
    25,648.60x = 346,576,335.28
  5. Step 5: Solve for x
    x = 346,576,335.28/25,648.60
  6. Step 6: Final answer
    x = 13,512.49

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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.