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Finding the Fourth Proportional to 3,612.73, 5,419.10 and 1,532.20

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Solution

The fourth proportional to 3,612.73, 5,419.10 and 1,532.20 is: 2,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.73 : 5,419.10 = 1,532.20 : x
  2. Step 2: Convert to fraction form
    3,612.73/5,419.10 = 1,532.20/x
  3. Step 3: Cross multiply
    3,612.73x = 5,419.10 × 1,532.20
  4. Step 4: Simplify right side
    3,612.73x = 8,303,145.02
  5. Step 5: Solve for x
    x = 8,303,145.02/3,612.73
  6. Step 6: Final answer
    x = 2,298.30

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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.