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Finding the Fourth Proportional to 15,211.88, 22,785.46 and 7,302.73

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Solution

The fourth proportional to 15,211.88, 22,785.46 and 7,302.73 is: 10,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.88 : 22,785.46 = 7,302.73 : x
  2. Step 2: Convert to fraction form
    15,211.88/22,785.46 = 7,302.73/x
  3. Step 3: Cross multiply
    15,211.88x = 22,785.46 × 7,302.73
  4. Step 4: Simplify right side
    15,211.88x = 166,396,062.31
  5. Step 5: Solve for x
    x = 166,396,062.31/15,211.88
  6. Step 6: Final answer
    x = 10,938.56

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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.