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Finding the Fourth Proportional to 5,662.70, 8,494.20 and 1,767.20

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Solution

The fourth proportional to 5,662.70, 8,494.20 and 1,767.20 is: 2,650.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.70 : 8,494.20 = 1,767.20 : x
  2. Step 2: Convert to fraction form
    5,662.70/8,494.20 = 1,767.20/x
  3. Step 3: Cross multiply
    5,662.70x = 8,494.20 × 1,767.20
  4. Step 4: Simplify right side
    5,662.70x = 15,010,950.24
  5. Step 5: Solve for x
    x = 15,010,950.24/5,662.70
  6. Step 6: Final answer
    x = 2,650.85

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Half scale
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Double scale
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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.