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Finding the Fourth Proportional to 2,247.34, 3,371.03 and 842.08

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Solution

The fourth proportional to 2,247.34, 3,371.03 and 842.08 is: 1,263.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.34 : 3,371.03 = 842.08 : x
  2. Step 2: Convert to fraction form
    2,247.34/3,371.03 = 842.08/x
  3. Step 3: Cross multiply
    2,247.34x = 3,371.03 × 842.08
  4. Step 4: Simplify right side
    2,247.34x = 2,838,676.94
  5. Step 5: Solve for x
    x = 2,838,676.94/2,247.34
  6. Step 6: Final answer
    x = 1,263.13

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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.