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Finding the Fourth Proportional to 10,576.72, 15,867.48 and 7,291.12

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Solution

The fourth proportional to 10,576.72, 15,867.48 and 7,291.12 is: 10,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,576.72 : 15,867.48 = 7,291.12 : x
  2. Step 2: Convert to fraction form
    10,576.72/15,867.48 = 7,291.12/x
  3. Step 3: Cross multiply
    10,576.72x = 15,867.48 × 7,291.12
  4. Step 4: Simplify right side
    10,576.72x = 115,691,700.78
  5. Step 5: Solve for x
    x = 115,691,700.78/10,576.72
  6. Step 6: Final answer
    x = 10,938.33

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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.