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Finding the Fourth Proportional to 38,145.51, 57,227.78 and 26,922.78

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Solution

The fourth proportional to 38,145.51, 57,227.78 and 26,922.78 is: 40,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.51 : 57,227.78 = 26,922.78 : x
  2. Step 2: Convert to fraction form
    38,145.51/57,227.78 = 26,922.78/x
  3. Step 3: Cross multiply
    38,145.51x = 57,227.78 × 26,922.78
  4. Step 4: Simplify right side
    38,145.51x = 1,540,730,998.14
  5. Step 5: Solve for x
    x = 1,540,730,998.14/38,145.51
  6. Step 6: Final answer
    x = 40,390.89

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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.