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Finding the Fourth Proportional to 18,866.62, 26,036.09 and 11,797.14

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Solution

The fourth proportional to 18,866.62, 26,036.09 and 11,797.14 is: 16,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.62 : 26,036.09 = 11,797.14 : x
  2. Step 2: Convert to fraction form
    18,866.62/26,036.09 = 11,797.14/x
  3. Step 3: Cross multiply
    18,866.62x = 26,036.09 × 11,797.14
  4. Step 4: Simplify right side
    18,866.62x = 307,151,398.78
  5. Step 5: Solve for x
    x = 307,151,398.78/18,866.62
  6. Step 6: Final answer
    x = 16,280.15

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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.