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Finding the Fourth Proportional to 4,998.75, 7,498.08 and 1,667.25

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Solution

The fourth proportional to 4,998.75, 7,498.08 and 1,667.25 is: 2,500.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.75 : 7,498.08 = 1,667.25 : x
  2. Step 2: Convert to fraction form
    4,998.75/7,498.08 = 1,667.25/x
  3. Step 3: Cross multiply
    4,998.75x = 7,498.08 × 1,667.25
  4. Step 4: Simplify right side
    4,998.75x = 12,501,173.88
  5. Step 5: Solve for x
    x = 12,501,173.88/4,998.75
  6. Step 6: Final answer
    x = 2,500.86

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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.