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Finding the Fourth Proportional to 3,167.28, 4,371.12 and 1,751.28

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Solution

The fourth proportional to 3,167.28, 4,371.12 and 1,751.28 is: 2,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.28 : 4,371.12 = 1,751.28 : x
  2. Step 2: Convert to fraction form
    3,167.28/4,371.12 = 1,751.28/x
  3. Step 3: Cross multiply
    3,167.28x = 4,371.12 × 1,751.28
  4. Step 4: Simplify right side
    3,167.28x = 7,655,055.03
  5. Step 5: Solve for x
    x = 7,655,055.03/3,167.28
  6. Step 6: Final answer
    x = 2,416.92

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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.