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Finding the Fourth Proportional to 1,717.95, 2,370.77 and 932

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Solution

The fourth proportional to 1,717.95, 2,370.77 and 932 is: 1,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.95 : 2,370.77 = 932 : x
  2. Step 2: Convert to fraction form
    1,717.95/2,370.77 = 932/x
  3. Step 3: Cross multiply
    1,717.95x = 2,370.77 × 932
  4. Step 4: Simplify right side
    1,717.95x = 2,209,557.64
  5. Step 5: Solve for x
    x = 2,209,557.64/1,717.95
  6. Step 6: Final answer
    x = 1,286.16

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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.