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Finding the Fourth Proportional to 18,016.97, 27,019.98 and 10,619.44

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Solution

The fourth proportional to 18,016.97, 27,019.98 and 10,619.44 is: 15,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.97 : 27,019.98 = 10,619.44 : x
  2. Step 2: Convert to fraction form
    18,016.97/27,019.98 = 10,619.44/x
  3. Step 3: Cross multiply
    18,016.97x = 27,019.98 × 10,619.44
  4. Step 4: Simplify right side
    18,016.97x = 286,936,988.86
  5. Step 5: Solve for x
    x = 286,936,988.86/18,016.97
  6. Step 6: Final answer
    x = 15,925.93

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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.