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Finding the Fourth Proportional to 15,469.95, 23,201.21 and 7,141.97

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Solution

The fourth proportional to 15,469.95, 23,201.21 and 7,141.97 is: 10,711.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.95 : 23,201.21 = 7,141.97 : x
  2. Step 2: Convert to fraction form
    15,469.95/23,201.21 = 7,141.97/x
  3. Step 3: Cross multiply
    15,469.95x = 23,201.21 × 7,141.97
  4. Step 4: Simplify right side
    15,469.95x = 165,702,286.10
  5. Step 5: Solve for x
    x = 165,702,286.10/15,469.95
  6. Step 6: Final answer
    x = 10,711.24

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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.