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Finding the Fourth Proportional to 20,000.93, 27,600.48 and 11,048.13

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Solution

The fourth proportional to 20,000.93, 27,600.48 and 11,048.13 is: 15,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.93 : 27,600.48 = 11,048.13 : x
  2. Step 2: Convert to fraction form
    20,000.93/27,600.48 = 11,048.13/x
  3. Step 3: Cross multiply
    20,000.93x = 27,600.48 × 11,048.13
  4. Step 4: Simplify right side
    20,000.93x = 304,933,691.10
  5. Step 5: Solve for x
    x = 304,933,691.10/20,000.93
  6. Step 6: Final answer
    x = 15,245.98

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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.