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Finding the Fourth Proportional to 8,750.62, 13,111.32 and 6,148.90

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Solution

The fourth proportional to 8,750.62, 13,111.32 and 6,148.90 is: 9,213.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.62 : 13,111.32 = 6,148.90 : x
  2. Step 2: Convert to fraction form
    8,750.62/13,111.32 = 6,148.90/x
  3. Step 3: Cross multiply
    8,750.62x = 13,111.32 × 6,148.90
  4. Step 4: Simplify right side
    8,750.62x = 80,620,195.55
  5. Step 5: Solve for x
    x = 80,620,195.55/8,750.62
  6. Step 6: Final answer
    x = 9,213.08

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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.