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Finding the Fourth Proportional to 18,833.70, 25,986.11 and 10,874.44

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Solution

The fourth proportional to 18,833.70, 25,986.11 and 10,874.44 is: 15,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.70 : 25,986.11 = 10,874.44 : x
  2. Step 2: Convert to fraction form
    18,833.70/25,986.11 = 10,874.44/x
  3. Step 3: Cross multiply
    18,833.70x = 25,986.11 × 10,874.44
  4. Step 4: Simplify right side
    18,833.70x = 282,584,394.03
  5. Step 5: Solve for x
    x = 282,584,394.03/18,833.70
  6. Step 6: Final answer
    x = 15,004.19

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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.