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Finding the Fourth Proportional to 7,248.66, 10,839.78 and 5,401.08

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Solution

The fourth proportional to 7,248.66, 10,839.78 and 5,401.08 is: 8,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.66 : 10,839.78 = 5,401.08 : x
  2. Step 2: Convert to fraction form
    7,248.66/10,839.78 = 5,401.08/x
  3. Step 3: Cross multiply
    7,248.66x = 10,839.78 × 5,401.08
  4. Step 4: Simplify right side
    7,248.66x = 58,546,518.96
  5. Step 5: Solve for x
    x = 58,546,518.96/7,248.66
  6. Step 6: Final answer
    x = 8,076.87

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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.