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Finding the Fourth Proportional to 1,718.50, 2,371.53 and 932.54

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Solution

The fourth proportional to 1,718.50, 2,371.53 and 932.54 is: 1,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.50 : 2,371.53 = 932.54 : x
  2. Step 2: Convert to fraction form
    1,718.50/2,371.53 = 932.54/x
  3. Step 3: Cross multiply
    1,718.50x = 2,371.53 × 932.54
  4. Step 4: Simplify right side
    1,718.50x = 2,211,555.16
  5. Step 5: Solve for x
    x = 2,211,555.16/1,718.50
  6. Step 6: Final answer
    x = 1,286.91

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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.