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Finding the Fourth Proportional to 6,221.96, 8,574.50 and 4,450.49

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Solution

The fourth proportional to 6,221.96, 8,574.50 and 4,450.49 is: 6,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,221.96 : 8,574.50 = 4,450.49 : x
  2. Step 2: Convert to fraction form
    6,221.96/8,574.50 = 4,450.49/x
  3. Step 3: Cross multiply
    6,221.96x = 8,574.50 × 4,450.49
  4. Step 4: Simplify right side
    6,221.96x = 38,160,704.25
  5. Step 5: Solve for x
    x = 38,160,704.25/6,221.96
  6. Step 6: Final answer
    x = 6,133.23

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Double scale
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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.