Home / 18,826.75-25,982.13-10,443.25

Finding the Fourth Proportional to 18,826.75, 25,982.13 and 10,443.25

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Solution

The fourth proportional to 18,826.75, 25,982.13 and 10,443.25 is: 14,412.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.75 : 25,982.13 = 10,443.25 : x
  2. Step 2: Convert to fraction form
    18,826.75/25,982.13 = 10,443.25/x
  3. Step 3: Cross multiply
    18,826.75x = 25,982.13 × 10,443.25
  4. Step 4: Simplify right side
    18,826.75x = 271,337,879.12
  5. Step 5: Solve for x
    x = 271,337,879.12/18,826.75
  6. Step 6: Final answer
    x = 14,412.36

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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.