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Finding the Fourth Proportional to 1,516.96, 2,092.44 and 956.95

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Solution

The fourth proportional to 1,516.96, 2,092.44 and 956.95 is: 1,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.96 : 2,092.44 = 956.95 : x
  2. Step 2: Convert to fraction form
    1,516.96/2,092.44 = 956.95/x
  3. Step 3: Cross multiply
    1,516.96x = 2,092.44 × 956.95
  4. Step 4: Simplify right side
    1,516.96x = 2,002,360.46
  5. Step 5: Solve for x
    x = 2,002,360.46/1,516.96
  6. Step 6: Final answer
    x = 1,319.98

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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.