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Finding the Fourth Proportional to 15,094.88, 20,825.22 and 11,125.48

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Solution

The fourth proportional to 15,094.88, 20,825.22 and 11,125.48 is: 15,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,094.88 : 20,825.22 = 11,125.48 : x
  2. Step 2: Convert to fraction form
    15,094.88/20,825.22 = 11,125.48/x
  3. Step 3: Cross multiply
    15,094.88x = 20,825.22 × 11,125.48
  4. Step 4: Simplify right side
    15,094.88x = 231,690,568.61
  5. Step 5: Solve for x
    x = 231,690,568.61/15,094.88
  6. Step 6: Final answer
    x = 15,348.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.