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Finding the Fourth Proportional to 8,317.89, 12,475.20 and 2,473.20

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Solution

The fourth proportional to 8,317.89, 12,475.20 and 2,473.20 is: 3,709.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.89 : 12,475.20 = 2,473.20 : x
  2. Step 2: Convert to fraction form
    8,317.89/12,475.20 = 2,473.20/x
  3. Step 3: Cross multiply
    8,317.89x = 12,475.20 × 2,473.20
  4. Step 4: Simplify right side
    8,317.89x = 30,853,664.64
  5. Step 5: Solve for x
    x = 30,853,664.64/8,317.89
  6. Step 6: Final answer
    x = 3,709.31

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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.