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Finding the Fourth Proportional to 18,633.97, 27,955.01 and 9,279.08

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Solution

The fourth proportional to 18,633.97, 27,955.01 and 9,279.08 is: 13,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.97 : 27,955.01 = 9,279.08 : x
  2. Step 2: Convert to fraction form
    18,633.97/27,955.01 = 9,279.08/x
  3. Step 3: Cross multiply
    18,633.97x = 27,955.01 × 9,279.08
  4. Step 4: Simplify right side
    18,633.97x = 259,396,774.19
  5. Step 5: Solve for x
    x = 259,396,774.19/18,633.97
  6. Step 6: Final answer
    x = 13,920.64

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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.