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Finding the Fourth Proportional to 1,757.36, 2,425.16 and 960.69

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Solution

The fourth proportional to 1,757.36, 2,425.16 and 960.69 is: 1,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.36 : 2,425.16 = 960.69 : x
  2. Step 2: Convert to fraction form
    1,757.36/2,425.16 = 960.69/x
  3. Step 3: Cross multiply
    1,757.36x = 2,425.16 × 960.69
  4. Step 4: Simplify right side
    1,757.36x = 2,329,819.41
  5. Step 5: Solve for x
    x = 2,329,819.41/1,757.36
  6. Step 6: Final answer
    x = 1,325.75

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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.