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Finding the Fourth Proportional to 18,997.25, 26,216.12 and 10,499.13

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Solution

The fourth proportional to 18,997.25, 26,216.12 and 10,499.13 is: 14,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.25 : 26,216.12 = 10,499.13 : x
  2. Step 2: Convert to fraction form
    18,997.25/26,216.12 = 10,499.13/x
  3. Step 3: Cross multiply
    18,997.25x = 26,216.12 × 10,499.13
  4. Step 4: Simplify right side
    18,997.25x = 275,246,399.48
  5. Step 5: Solve for x
    x = 275,246,399.48/18,997.25
  6. Step 6: Final answer
    x = 14,488.75

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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.