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Finding the Fourth Proportional to 18,147.25, 27,221.01 and 5,000.35

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Solution

The fourth proportional to 18,147.25, 27,221.01 and 5,000.35 is: 7,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.25 : 27,221.01 = 5,000.35 : x
  2. Step 2: Convert to fraction form
    18,147.25/27,221.01 = 5,000.35/x
  3. Step 3: Cross multiply
    18,147.25x = 27,221.01 × 5,000.35
  4. Step 4: Simplify right side
    18,147.25x = 136,114,460.00
  5. Step 5: Solve for x
    x = 136,114,460.00/18,147.25
  6. Step 6: Final answer
    x = 7,500.55

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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.