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Finding the Fourth Proportional to 2,092.84, 3,140.88 and 1,053.88

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Solution

The fourth proportional to 2,092.84, 3,140.88 and 1,053.88 is: 1,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.84 : 3,140.88 = 1,053.88 : x
  2. Step 2: Convert to fraction form
    2,092.84/3,140.88 = 1,053.88/x
  3. Step 3: Cross multiply
    2,092.84x = 3,140.88 × 1,053.88
  4. Step 4: Simplify right side
    2,092.84x = 3,310,110.61
  5. Step 5: Solve for x
    x = 3,310,110.61/2,092.84
  6. Step 6: Final answer
    x = 1,581.64

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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.