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Finding the Fourth Proportional to 8,481.98, 12,718.35 and 2,934.87

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Solution

The fourth proportional to 8,481.98, 12,718.35 and 2,934.87 is: 4,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.98 : 12,718.35 = 2,934.87 : x
  2. Step 2: Convert to fraction form
    8,481.98/12,718.35 = 2,934.87/x
  3. Step 3: Cross multiply
    8,481.98x = 12,718.35 × 2,934.87
  4. Step 4: Simplify right side
    8,481.98x = 37,326,656.17
  5. Step 5: Solve for x
    x = 37,326,656.17/8,481.98
  6. Step 6: Final answer
    x = 4,400.70

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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.