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Finding the Fourth Proportional to 10,728.92, 14,799.78 and 6,252.19

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Solution

The fourth proportional to 10,728.92, 14,799.78 and 6,252.19 is: 8,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.92 : 14,799.78 = 6,252.19 : x
  2. Step 2: Convert to fraction form
    10,728.92/14,799.78 = 6,252.19/x
  3. Step 3: Cross multiply
    10,728.92x = 14,799.78 × 6,252.19
  4. Step 4: Simplify right side
    10,728.92x = 92,530,999.52
  5. Step 5: Solve for x
    x = 92,530,999.52/10,728.92
  6. Step 6: Final answer
    x = 8,624.44

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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.