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Finding the Fourth Proportional to 5,753.80, 8,630.70 and 5,671.90

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Solution

The fourth proportional to 5,753.80, 8,630.70 and 5,671.90 is: 8,507.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,753.80 : 8,630.70 = 5,671.90 : x
  2. Step 2: Convert to fraction form
    5,753.80/8,630.70 = 5,671.90/x
  3. Step 3: Cross multiply
    5,753.80x = 8,630.70 × 5,671.90
  4. Step 4: Simplify right side
    5,753.80x = 48,952,467.33
  5. Step 5: Solve for x
    x = 48,952,467.33/5,753.80
  6. Step 6: Final answer
    x = 8,507.85

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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.