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Finding the Fourth Proportional to 1,954.97, 2,932.75 and 656.13

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Solution

The fourth proportional to 1,954.97, 2,932.75 and 656.13 is: 984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.97 : 2,932.75 = 656.13 : x
  2. Step 2: Convert to fraction form
    1,954.97/2,932.75 = 656.13/x
  3. Step 3: Cross multiply
    1,954.97x = 2,932.75 × 656.13
  4. Step 4: Simplify right side
    1,954.97x = 1,924,265.26
  5. Step 5: Solve for x
    x = 1,924,265.26/1,954.97
  6. Step 6: Final answer
    x = 984.30

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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.