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Finding the Fourth Proportional to 2,496.18, 3,744.24 and 853.88

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Solution

The fourth proportional to 2,496.18, 3,744.24 and 853.88 is: 1,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,496.18 : 3,744.24 = 853.88 : x
  2. Step 2: Convert to fraction form
    2,496.18/3,744.24 = 853.88/x
  3. Step 3: Cross multiply
    2,496.18x = 3,744.24 × 853.88
  4. Step 4: Simplify right side
    2,496.18x = 3,197,112.93
  5. Step 5: Solve for x
    x = 3,197,112.93/2,496.18
  6. Step 6: Final answer
    x = 1,280.80

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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.