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Finding the Fourth Proportional to 1,996.20, 2,993.00 and 956.18

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Solution

The fourth proportional to 1,996.20, 2,993.00 and 956.18 is: 1,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.20 : 2,993.00 = 956.18 : x
  2. Step 2: Convert to fraction form
    1,996.20/2,993.00 = 956.18/x
  3. Step 3: Cross multiply
    1,996.20x = 2,993.00 × 956.18
  4. Step 4: Simplify right side
    1,996.20x = 2,861,834.17
  5. Step 5: Solve for x
    x = 2,861,834.17/1,996.20
  6. Step 6: Final answer
    x = 1,433.64

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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.