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Finding the Fourth Proportional to 1,092.84, 1,518.56 and 1,079.04

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Solution

The fourth proportional to 1,092.84, 1,518.56 and 1,079.04 is: 1,499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.84 : 1,518.56 = 1,079.04 : x
  2. Step 2: Convert to fraction form
    1,092.84/1,518.56 = 1,079.04/x
  3. Step 3: Cross multiply
    1,092.84x = 1,518.56 × 1,079.04
  4. Step 4: Simplify right side
    1,092.84x = 1,638,586.98
  5. Step 5: Solve for x
    x = 1,638,586.98/1,092.84
  6. Step 6: Final answer
    x = 1,499.38

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.