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Finding the Fourth Proportional to 1,755, 2,422.02 and 969.06

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Solution

The fourth proportional to 1,755, 2,422.02 and 969.06 is: 1,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755 : 2,422.02 = 969.06 : x
  2. Step 2: Convert to fraction form
    1,755/2,422.02 = 969.06/x
  3. Step 3: Cross multiply
    1,755x = 2,422.02 × 969.06
  4. Step 4: Simplify right side
    1,755x = 2,347,082.70
  5. Step 5: Solve for x
    x = 2,347,082.70/1,755
  6. Step 6: Final answer
    x = 1,337.37

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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.