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Finding the Fourth Proportional to 1,755.24, 2,422.24 and 958.57

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Solution

The fourth proportional to 1,755.24, 2,422.24 and 958.57 is: 1,322.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.24 : 2,422.24 = 958.57 : x
  2. Step 2: Convert to fraction form
    1,755.24/2,422.24 = 958.57/x
  3. Step 3: Cross multiply
    1,755.24x = 2,422.24 × 958.57
  4. Step 4: Simplify right side
    1,755.24x = 2,321,888.36
  5. Step 5: Solve for x
    x = 2,321,888.36/1,755.24
  6. Step 6: Final answer
    x = 1,322.83

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1.5x scale

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.