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Finding the Fourth Proportional to 1,702.38, 2,552.92 and 662.24

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Solution

The fourth proportional to 1,702.38, 2,552.92 and 662.24 is: 993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.38 : 2,552.92 = 662.24 : x
  2. Step 2: Convert to fraction form
    1,702.38/2,552.92 = 662.24/x
  3. Step 3: Cross multiply
    1,702.38x = 2,552.92 × 662.24
  4. Step 4: Simplify right side
    1,702.38x = 1,690,648.81
  5. Step 5: Solve for x
    x = 1,690,648.81/1,702.38
  6. Step 6: Final answer
    x = 993.11

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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.