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Finding the Fourth Proportional to 1,792.97, 2,685.13 and 1,587.77

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Solution

The fourth proportional to 1,792.97, 2,685.13 and 1,587.77 is: 2,377.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.97 : 2,685.13 = 1,587.77 : x
  2. Step 2: Convert to fraction form
    1,792.97/2,685.13 = 1,587.77/x
  3. Step 3: Cross multiply
    1,792.97x = 2,685.13 × 1,587.77
  4. Step 4: Simplify right side
    1,792.97x = 4,263,347.50
  5. Step 5: Solve for x
    x = 4,263,347.50/1,792.97
  6. Step 6: Final answer
    x = 2,377.82

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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.