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Finding the Fourth Proportional to 15,008.64, 22,512.78 and 6,686.52

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Solution

The fourth proportional to 15,008.64, 22,512.78 and 6,686.52 is: 10,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.64 : 22,512.78 = 6,686.52 : x
  2. Step 2: Convert to fraction form
    15,008.64/22,512.78 = 6,686.52/x
  3. Step 3: Cross multiply
    15,008.64x = 22,512.78 × 6,686.52
  4. Step 4: Simplify right side
    15,008.64x = 150,532,153.73
  5. Step 5: Solve for x
    x = 150,532,153.73/15,008.64
  6. Step 6: Final answer
    x = 10,029.70

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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.