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Finding the Fourth Proportional to 3,544.80, 5,317.20 and 3,343.20

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Solution

The fourth proportional to 3,544.80, 5,317.20 and 3,343.20 is: 5,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.80 : 5,317.20 = 3,343.20 : x
  2. Step 2: Convert to fraction form
    3,544.80/5,317.20 = 3,343.20/x
  3. Step 3: Cross multiply
    3,544.80x = 5,317.20 × 3,343.20
  4. Step 4: Simplify right side
    3,544.80x = 17,776,463.04
  5. Step 5: Solve for x
    x = 17,776,463.04/3,544.80
  6. Step 6: Final answer
    x = 5,014.80

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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.