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Finding the Fourth Proportional to 2,936.13, 4,403.80 and 744.67

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Solution

The fourth proportional to 2,936.13, 4,403.80 and 744.67 is: 1,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.13 : 4,403.80 = 744.67 : x
  2. Step 2: Convert to fraction form
    2,936.13/4,403.80 = 744.67/x
  3. Step 3: Cross multiply
    2,936.13x = 4,403.80 × 744.67
  4. Step 4: Simplify right side
    2,936.13x = 3,279,377.75
  5. Step 5: Solve for x
    x = 3,279,377.75/2,936.13
  6. Step 6: Final answer
    x = 1,116.90

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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.