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Finding the Fourth Proportional to 1,102.44, 1,523.34 and 954.84

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Solution

The fourth proportional to 1,102.44, 1,523.34 and 954.84 is: 1,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.44 : 1,523.34 = 954.84 : x
  2. Step 2: Convert to fraction form
    1,102.44/1,523.34 = 954.84/x
  3. Step 3: Cross multiply
    1,102.44x = 1,523.34 × 954.84
  4. Step 4: Simplify right side
    1,102.44x = 1,454,545.97
  5. Step 5: Solve for x
    x = 1,454,545.97/1,102.44
  6. Step 6: Final answer
    x = 1,319.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.