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Finding the Fourth Proportional to 39,851.73, 54,998.73 and 21,950.46

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Solution

The fourth proportional to 39,851.73, 54,998.73 and 21,950.46 is: 30,293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,851.73 : 54,998.73 = 21,950.46 : x
  2. Step 2: Convert to fraction form
    39,851.73/54,998.73 = 21,950.46/x
  3. Step 3: Cross multiply
    39,851.73x = 54,998.73 × 21,950.46
  4. Step 4: Simplify right side
    39,851.73x = 1,207,247,422.92
  5. Step 5: Solve for x
    x = 1,207,247,422.92/39,851.73
  6. Step 6: Final answer
    x = 30,293.48

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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.