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Finding the Fourth Proportional to 1,348.24, 2,023.02 and 862.24

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Solution

The fourth proportional to 1,348.24, 2,023.02 and 862.24 is: 1,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.24 : 2,023.02 = 862.24 : x
  2. Step 2: Convert to fraction form
    1,348.24/2,023.02 = 862.24/x
  3. Step 3: Cross multiply
    1,348.24x = 2,023.02 × 862.24
  4. Step 4: Simplify right side
    1,348.24x = 1,744,328.76
  5. Step 5: Solve for x
    x = 1,744,328.76/1,348.24
  6. Step 6: Final answer
    x = 1,293.78

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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.