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Finding the Fourth Proportional to 20,000.19, 27,604.11 and 11,508.03

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Solution

The fourth proportional to 20,000.19, 27,604.11 and 11,508.03 is: 15,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.19 : 27,604.11 = 11,508.03 : x
  2. Step 2: Convert to fraction form
    20,000.19/27,604.11 = 11,508.03/x
  3. Step 3: Cross multiply
    20,000.19x = 27,604.11 × 11,508.03
  4. Step 4: Simplify right side
    20,000.19x = 317,668,926.00
  5. Step 5: Solve for x
    x = 317,668,926.00/20,000.19
  6. Step 6: Final answer
    x = 15,883.30

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.