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Finding the Fourth Proportional to 8,951.31, 12,352.04 and 4,972.35

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Solution

The fourth proportional to 8,951.31, 12,352.04 and 4,972.35 is: 6,861.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.31 : 12,352.04 = 4,972.35 : x
  2. Step 2: Convert to fraction form
    8,951.31/12,352.04 = 4,972.35/x
  3. Step 3: Cross multiply
    8,951.31x = 12,352.04 × 4,972.35
  4. Step 4: Simplify right side
    8,951.31x = 61,418,641.23
  5. Step 5: Solve for x
    x = 61,418,641.23/8,951.31
  6. Step 6: Final answer
    x = 6,861.41

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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.