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Finding the Fourth Proportional to 8,633.72, 12,948.12 and 2,392.16

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Solution

The fourth proportional to 8,633.72, 12,948.12 and 2,392.16 is: 3,587.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.72 : 12,948.12 = 2,392.16 : x
  2. Step 2: Convert to fraction form
    8,633.72/12,948.12 = 2,392.16/x
  3. Step 3: Cross multiply
    8,633.72x = 12,948.12 × 2,392.16
  4. Step 4: Simplify right side
    8,633.72x = 30,973,974.74
  5. Step 5: Solve for x
    x = 30,973,974.74/8,633.72
  6. Step 6: Final answer
    x = 3,587.56

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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.