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Finding the Fourth Proportional to 1,717.92, 2,370.76 and 932

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Solution

The fourth proportional to 1,717.92, 2,370.76 and 932 is: 1,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.92 : 2,370.76 = 932 : x
  2. Step 2: Convert to fraction form
    1,717.92/2,370.76 = 932/x
  3. Step 3: Cross multiply
    1,717.92x = 2,370.76 × 932
  4. Step 4: Simplify right side
    1,717.92x = 2,209,548.32
  5. Step 5: Solve for x
    x = 2,209,548.32/1,717.92
  6. Step 6: Final answer
    x = 1,286.18

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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.