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Finding the Fourth Proportional to 951.52, 1,424.69 and 896.89

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Solution

The fourth proportional to 951.52, 1,424.69 and 896.89 is: 1,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.52 : 1,424.69 = 896.89 : x
  2. Step 2: Convert to fraction form
    951.52/1,424.69 = 896.89/x
  3. Step 3: Cross multiply
    951.52x = 1,424.69 × 896.89
  4. Step 4: Simplify right side
    951.52x = 1,277,790.21
  5. Step 5: Solve for x
    x = 1,277,790.21/951.52
  6. Step 6: Final answer
    x = 1,342.89

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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.