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Finding the Fourth Proportional to 2,472.24, 3,707.68 and 717.20

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Solution

The fourth proportional to 2,472.24, 3,707.68 and 717.20 is: 1,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.24 : 3,707.68 = 717.20 : x
  2. Step 2: Convert to fraction form
    2,472.24/3,707.68 = 717.20/x
  3. Step 3: Cross multiply
    2,472.24x = 3,707.68 × 717.20
  4. Step 4: Simplify right side
    2,472.24x = 2,659,148.10
  5. Step 5: Solve for x
    x = 2,659,148.10/2,472.24
  6. Step 6: Final answer
    x = 1,075.60

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1.5x scale

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.