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Finding the Fourth Proportional to 8,917.08, 13,375.62 and 5,244.90

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Solution

The fourth proportional to 8,917.08, 13,375.62 and 5,244.90 is: 7,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.08 : 13,375.62 = 5,244.90 : x
  2. Step 2: Convert to fraction form
    8,917.08/13,375.62 = 5,244.90/x
  3. Step 3: Cross multiply
    8,917.08x = 13,375.62 × 5,244.90
  4. Step 4: Simplify right side
    8,917.08x = 70,153,789.34
  5. Step 5: Solve for x
    x = 70,153,789.34/8,917.08
  6. Step 6: Final answer
    x = 7,867.35

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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.