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Finding the Fourth Proportional to 6,367.42, 8,786.55 and 3,572.38

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Solution

The fourth proportional to 6,367.42, 8,786.55 and 3,572.38 is: 4,929.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.42 : 8,786.55 = 3,572.38 : x
  2. Step 2: Convert to fraction form
    6,367.42/8,786.55 = 3,572.38/x
  3. Step 3: Cross multiply
    6,367.42x = 8,786.55 × 3,572.38
  4. Step 4: Simplify right side
    6,367.42x = 31,388,851.56
  5. Step 5: Solve for x
    x = 31,388,851.56/6,367.42
  6. Step 6: Final answer
    x = 4,929.61

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.