Home / 18,820.06-28,400.88-18,192.66

Finding the Fourth Proportional to 18,820.06, 28,400.88 and 18,192.66

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Solution

The fourth proportional to 18,820.06, 28,400.88 and 18,192.66 is: 27,454.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.06 : 28,400.88 = 18,192.66 : x
  2. Step 2: Convert to fraction form
    18,820.06/28,400.88 = 18,192.66/x
  3. Step 3: Cross multiply
    18,820.06x = 28,400.88 × 18,192.66
  4. Step 4: Simplify right side
    18,820.06x = 516,687,553.54
  5. Step 5: Solve for x
    x = 516,687,553.54/18,820.06
  6. Step 6: Final answer
    x = 27,454.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.