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Finding the Fourth Proportional to 4,987.48, 7,481.21 and 1,524.73

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Solution

The fourth proportional to 4,987.48, 7,481.21 and 1,524.73 is: 2,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.48 : 7,481.21 = 1,524.73 : x
  2. Step 2: Convert to fraction form
    4,987.48/7,481.21 = 1,524.73/x
  3. Step 3: Cross multiply
    4,987.48x = 7,481.21 × 1,524.73
  4. Step 4: Simplify right side
    4,987.48x = 11,406,780.29
  5. Step 5: Solve for x
    x = 11,406,780.29/4,987.48
  6. Step 6: Final answer
    x = 2,287.09

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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.