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Finding the Fourth Proportional to 1,747.95, 2,412.10 and 962

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Solution

The fourth proportional to 1,747.95, 2,412.10 and 962 is: 1,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.95 : 2,412.10 = 962 : x
  2. Step 2: Convert to fraction form
    1,747.95/2,412.10 = 962/x
  3. Step 3: Cross multiply
    1,747.95x = 2,412.10 × 962
  4. Step 4: Simplify right side
    1,747.95x = 2,320,440.20
  5. Step 5: Solve for x
    x = 2,320,440.20/1,747.95
  6. Step 6: Final answer
    x = 1,327.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.