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Finding the Fourth Proportional to 8,951.62, 12,353.34 and 4,972.99

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Solution

The fourth proportional to 8,951.62, 12,353.34 and 4,972.99 is: 6,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.62 : 12,353.34 = 4,972.99 : x
  2. Step 2: Convert to fraction form
    8,951.62/12,353.34 = 4,972.99/x
  3. Step 3: Cross multiply
    8,951.62x = 12,353.34 × 4,972.99
  4. Step 4: Simplify right side
    8,951.62x = 61,433,036.29
  5. Step 5: Solve for x
    x = 61,433,036.29/8,951.62
  6. Step 6: Final answer
    x = 6,862.78

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1.5x scale

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.