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Finding the Fourth Proportional to 1,933.38, 2,668.07 and 1,049.20

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Solution

The fourth proportional to 1,933.38, 2,668.07 and 1,049.20 is: 1,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.38 : 2,668.07 = 1,049.20 : x
  2. Step 2: Convert to fraction form
    1,933.38/2,668.07 = 1,049.20/x
  3. Step 3: Cross multiply
    1,933.38x = 2,668.07 × 1,049.20
  4. Step 4: Simplify right side
    1,933.38x = 2,799,335.00
  5. Step 5: Solve for x
    x = 2,799,335.00/1,933.38
  6. Step 6: Final answer
    x = 1,447.90

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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.