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Finding the Fourth Proportional to 963.86, 1,339.10 and 952.34

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Solution

The fourth proportional to 963.86, 1,339.10 and 952.34 is: 1,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.86 : 1,339.10 = 952.34 : x
  2. Step 2: Convert to fraction form
    963.86/1,339.10 = 952.34/x
  3. Step 3: Cross multiply
    963.86x = 1,339.10 × 952.34
  4. Step 4: Simplify right side
    963.86x = 1,275,278.49
  5. Step 5: Solve for x
    x = 1,275,278.49/963.86
  6. Step 6: Final answer
    x = 1,323.10

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.