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Finding the Fourth Proportional to 7,991.92, 11,987.88 and 5,064.06

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Solution

The fourth proportional to 7,991.92, 11,987.88 and 5,064.06 is: 7,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.92 : 11,987.88 = 5,064.06 : x
  2. Step 2: Convert to fraction form
    7,991.92/11,987.88 = 5,064.06/x
  3. Step 3: Cross multiply
    7,991.92x = 11,987.88 × 5,064.06
  4. Step 4: Simplify right side
    7,991.92x = 60,707,343.59
  5. Step 5: Solve for x
    x = 60,707,343.59/7,991.92
  6. Step 6: Final answer
    x = 7,596.09

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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.