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Finding the Fourth Proportional to 1,402.92, 2,102.40 and 1,034.82

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Solution

The fourth proportional to 1,402.92, 2,102.40 and 1,034.82 is: 1,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.92 : 2,102.40 = 1,034.82 : x
  2. Step 2: Convert to fraction form
    1,402.92/2,102.40 = 1,034.82/x
  3. Step 3: Cross multiply
    1,402.92x = 2,102.40 × 1,034.82
  4. Step 4: Simplify right side
    1,402.92x = 2,175,605.57
  5. Step 5: Solve for x
    x = 2,175,605.57/1,402.92
  6. Step 6: Final answer
    x = 1,550.77

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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.