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Finding the Fourth Proportional to 8,558.52, 12,829.13 and 3,564.57

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Solution

The fourth proportional to 8,558.52, 12,829.13 and 3,564.57 is: 5,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.52 : 12,829.13 = 3,564.57 : x
  2. Step 2: Convert to fraction form
    8,558.52/12,829.13 = 3,564.57/x
  3. Step 3: Cross multiply
    8,558.52x = 12,829.13 × 3,564.57
  4. Step 4: Simplify right side
    8,558.52x = 45,730,331.92
  5. Step 5: Solve for x
    x = 45,730,331.92/8,558.52
  6. Step 6: Final answer
    x = 5,343.25

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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.