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Finding the Fourth Proportional to 1,474.24, 2,034 and 853.12

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Solution

The fourth proportional to 1,474.24, 2,034 and 853.12 is: 1,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.24 : 2,034 = 853.12 : x
  2. Step 2: Convert to fraction form
    1,474.24/2,034 = 853.12/x
  3. Step 3: Cross multiply
    1,474.24x = 2,034 × 853.12
  4. Step 4: Simplify right side
    1,474.24x = 1,735,246.08
  5. Step 5: Solve for x
    x = 1,735,246.08/1,474.24
  6. Step 6: Final answer
    x = 1,177.04

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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.