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Finding the Fourth Proportional to 2,497.24, 3,746.31 and 853.39

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Solution

The fourth proportional to 2,497.24, 3,746.31 and 853.39 is: 1,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,497.24 : 3,746.31 = 853.39 : x
  2. Step 2: Convert to fraction form
    2,497.24/3,746.31 = 853.39/x
  3. Step 3: Cross multiply
    2,497.24x = 3,746.31 × 853.39
  4. Step 4: Simplify right side
    2,497.24x = 3,197,063.49
  5. Step 5: Solve for x
    x = 3,197,063.49/2,497.24
  6. Step 6: Final answer
    x = 1,280.24

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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.