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Finding the Fourth Proportional to 3,162.70, 4,362.71 and 1,836.24

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Solution

The fourth proportional to 3,162.70, 4,362.71 and 1,836.24 is: 2,532.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.70 : 4,362.71 = 1,836.24 : x
  2. Step 2: Convert to fraction form
    3,162.70/4,362.71 = 1,836.24/x
  3. Step 3: Cross multiply
    3,162.70x = 4,362.71 × 1,836.24
  4. Step 4: Simplify right side
    3,162.70x = 8,010,982.61
  5. Step 5: Solve for x
    x = 8,010,982.61/3,162.70
  6. Step 6: Final answer
    x = 2,532.96

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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.