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Finding the Fourth Proportional to 3,991.29, 5,984.16 and 1,768.92

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Solution

The fourth proportional to 3,991.29, 5,984.16 and 1,768.92 is: 2,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.29 : 5,984.16 = 1,768.92 : x
  2. Step 2: Convert to fraction form
    3,991.29/5,984.16 = 1,768.92/x
  3. Step 3: Cross multiply
    3,991.29x = 5,984.16 × 1,768.92
  4. Step 4: Simplify right side
    3,991.29x = 10,585,491.46
  5. Step 5: Solve for x
    x = 10,585,491.46/3,991.29
  6. Step 6: Final answer
    x = 2,652.15

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Half scale
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Double scale
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Similar ratio
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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.