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Finding the Fourth Proportional to 5,998.72, 8,998.16 and 2,103.24

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Solution

The fourth proportional to 5,998.72, 8,998.16 and 2,103.24 is: 3,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,998.72 : 8,998.16 = 2,103.24 : x
  2. Step 2: Convert to fraction form
    5,998.72/8,998.16 = 2,103.24/x
  3. Step 3: Cross multiply
    5,998.72x = 8,998.16 × 2,103.24
  4. Step 4: Simplify right side
    5,998.72x = 18,925,290.04
  5. Step 5: Solve for x
    x = 18,925,290.04/5,998.72
  6. Step 6: Final answer
    x = 3,154.89

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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.