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Finding the Fourth Proportional to 1,374.48, 2,062.13 and 827.33

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Solution

The fourth proportional to 1,374.48, 2,062.13 and 827.33 is: 1,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.48 : 2,062.13 = 827.33 : x
  2. Step 2: Convert to fraction form
    1,374.48/2,062.13 = 827.33/x
  3. Step 3: Cross multiply
    1,374.48x = 2,062.13 × 827.33
  4. Step 4: Simplify right side
    1,374.48x = 1,706,047.57
  5. Step 5: Solve for x
    x = 1,706,047.57/1,374.48
  6. Step 6: Final answer
    x = 1,241.23

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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.