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Finding the Fourth Proportional to 1,394.84, 2,092.80 and 1,032.68

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Solution

The fourth proportional to 1,394.84, 2,092.80 and 1,032.68 is: 1,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.84 : 2,092.80 = 1,032.68 : x
  2. Step 2: Convert to fraction form
    1,394.84/2,092.80 = 1,032.68/x
  3. Step 3: Cross multiply
    1,394.84x = 2,092.80 × 1,032.68
  4. Step 4: Simplify right side
    1,394.84x = 2,161,192.70
  5. Step 5: Solve for x
    x = 2,161,192.70/1,394.84
  6. Step 6: Final answer
    x = 1,549.42

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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.