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Finding the Fourth Proportional to 2,342.61, 3,512.97 and 956.66

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Solution

The fourth proportional to 2,342.61, 3,512.97 and 956.66 is: 1,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.61 : 3,512.97 = 956.66 : x
  2. Step 2: Convert to fraction form
    2,342.61/3,512.97 = 956.66/x
  3. Step 3: Cross multiply
    2,342.61x = 3,512.97 × 956.66
  4. Step 4: Simplify right side
    2,342.61x = 3,360,700.32
  5. Step 5: Solve for x
    x = 3,360,700.32/2,342.61
  6. Step 6: Final answer
    x = 1,434.60

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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.