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Finding the Fourth Proportional to 38,992.68, 53,807.96 and 22,857.75

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Solution

The fourth proportional to 38,992.68, 53,807.96 and 22,857.75 is: 31,542.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992.68 : 53,807.96 = 22,857.75 : x
  2. Step 2: Convert to fraction form
    38,992.68/53,807.96 = 22,857.75/x
  3. Step 3: Cross multiply
    38,992.68x = 53,807.96 × 22,857.75
  4. Step 4: Simplify right side
    38,992.68x = 1,229,928,954.83
  5. Step 5: Solve for x
    x = 1,229,928,954.83/38,992.68
  6. Step 6: Final answer
    x = 31,542.56

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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.