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Finding the Fourth Proportional to 8,791.56, 13,188.24 and 2,948.28

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Solution

The fourth proportional to 8,791.56, 13,188.24 and 2,948.28 is: 4,422.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.56 : 13,188.24 = 2,948.28 : x
  2. Step 2: Convert to fraction form
    8,791.56/13,188.24 = 2,948.28/x
  3. Step 3: Cross multiply
    8,791.56x = 13,188.24 × 2,948.28
  4. Step 4: Simplify right side
    8,791.56x = 38,882,624.23
  5. Step 5: Solve for x
    x = 38,882,624.23/8,791.56
  6. Step 6: Final answer
    x = 4,422.72

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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.