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Finding the Fourth Proportional to 1,754.97, 2,421.84 and 958.29

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Solution

The fourth proportional to 1,754.97, 2,421.84 and 958.29 is: 1,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.97 : 2,421.84 = 958.29 : x
  2. Step 2: Convert to fraction form
    1,754.97/2,421.84 = 958.29/x
  3. Step 3: Cross multiply
    1,754.97x = 2,421.84 × 958.29
  4. Step 4: Simplify right side
    1,754.97x = 2,320,836.53
  5. Step 5: Solve for x
    x = 2,320,836.53/1,754.97
  6. Step 6: Final answer
    x = 1,322.43

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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.