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Finding the Fourth Proportional to 8,728.96, 12,046.44 and 5,002.96

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Solution

The fourth proportional to 8,728.96, 12,046.44 and 5,002.96 is: 6,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.96 : 12,046.44 = 5,002.96 : x
  2. Step 2: Convert to fraction form
    8,728.96/12,046.44 = 5,002.96/x
  3. Step 3: Cross multiply
    8,728.96x = 12,046.44 × 5,002.96
  4. Step 4: Simplify right side
    8,728.96x = 60,267,857.46
  5. Step 5: Solve for x
    x = 60,267,857.46/8,728.96
  6. Step 6: Final answer
    x = 6,904.36

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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.