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Finding the Fourth Proportional to 8,317.16, 12,464.92 and 3,381

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Solution

The fourth proportional to 8,317.16, 12,464.92 and 3,381 is: 5,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.16 : 12,464.92 = 3,381 : x
  2. Step 2: Convert to fraction form
    8,317.16/12,464.92 = 3,381/x
  3. Step 3: Cross multiply
    8,317.16x = 12,464.92 × 3,381
  4. Step 4: Simplify right side
    8,317.16x = 42,143,894.52
  5. Step 5: Solve for x
    x = 42,143,894.52/8,317.16
  6. Step 6: Final answer
    x = 5,067.10

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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.