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Finding the Fourth Proportional to 8,841.85, 12,195.47 and 7,506.31

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Solution

The fourth proportional to 8,841.85, 12,195.47 and 7,506.31 is: 10,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.85 : 12,195.47 = 7,506.31 : x
  2. Step 2: Convert to fraction form
    8,841.85/12,195.47 = 7,506.31/x
  3. Step 3: Cross multiply
    8,841.85x = 12,195.47 × 7,506.31
  4. Step 4: Simplify right side
    8,841.85x = 91,542,978.42
  5. Step 5: Solve for x
    x = 91,542,978.42/8,841.85
  6. Step 6: Final answer
    x = 10,353.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.