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Finding the Fourth Proportional to 18,843.67, 26,004.02 and 10,885.72

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Solution

The fourth proportional to 18,843.67, 26,004.02 and 10,885.72 is: 15,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.67 : 26,004.02 = 10,885.72 : x
  2. Step 2: Convert to fraction form
    18,843.67/26,004.02 = 10,885.72/x
  3. Step 3: Cross multiply
    18,843.67x = 26,004.02 × 10,885.72
  4. Step 4: Simplify right side
    18,843.67x = 283,072,480.59
  5. Step 5: Solve for x
    x = 283,072,480.59/18,843.67
  6. Step 6: Final answer
    x = 15,022.15

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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.