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Finding the Fourth Proportional to 6,223.21, 8,576.22 and 4,451.74

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Solution

The fourth proportional to 6,223.21, 8,576.22 and 4,451.74 is: 6,134.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,223.21 : 8,576.22 = 4,451.74 : x
  2. Step 2: Convert to fraction form
    6,223.21/8,576.22 = 4,451.74/x
  3. Step 3: Cross multiply
    6,223.21x = 8,576.22 × 4,451.74
  4. Step 4: Simplify right side
    6,223.21x = 38,179,101.62
  5. Step 5: Solve for x
    x = 38,179,101.62/6,223.21
  6. Step 6: Final answer
    x = 6,134.95

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Half scale
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Double scale
Find fourth proportional to 6,224.21, 8,577.60 and 4,452.74
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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.