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Finding the Fourth Proportional to 2,355.20, 3,532.69 and 968.20

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Solution

The fourth proportional to 2,355.20, 3,532.69 and 968.20 is: 1,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.20 : 3,532.69 = 968.20 : x
  2. Step 2: Convert to fraction form
    2,355.20/3,532.69 = 968.20/x
  3. Step 3: Cross multiply
    2,355.20x = 3,532.69 × 968.20
  4. Step 4: Simplify right side
    2,355.20x = 3,420,350.46
  5. Step 5: Solve for x
    x = 3,420,350.46/2,355.20
  6. Step 6: Final answer
    x = 1,452.25

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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.