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Finding the Fourth Proportional to 8,610.56, 12,918.24 and 4,452.08

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Solution

The fourth proportional to 8,610.56, 12,918.24 and 4,452.08 is: 6,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.56 : 12,918.24 = 4,452.08 : x
  2. Step 2: Convert to fraction form
    8,610.56/12,918.24 = 4,452.08/x
  3. Step 3: Cross multiply
    8,610.56x = 12,918.24 × 4,452.08
  4. Step 4: Simplify right side
    8,610.56x = 57,513,037.94
  5. Step 5: Solve for x
    x = 57,513,037.94/8,610.56
  6. Step 6: Final answer
    x = 6,679.36

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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.