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Finding the Fourth Proportional to 2,092.84, 3,139.80 and 794.68

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Solution

The fourth proportional to 2,092.84, 3,139.80 and 794.68 is: 1,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.84 : 3,139.80 = 794.68 : x
  2. Step 2: Convert to fraction form
    2,092.84/3,139.80 = 794.68/x
  3. Step 3: Cross multiply
    2,092.84x = 3,139.80 × 794.68
  4. Step 4: Simplify right side
    2,092.84x = 2,495,136.26
  5. Step 5: Solve for x
    x = 2,495,136.26/2,092.84
  6. Step 6: Final answer
    x = 1,192.23

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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.