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Finding the Fourth Proportional to 22,159, 33,391.37 and 20,078.92

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Solution

The fourth proportional to 22,159, 33,391.37 and 20,078.92 is: 30,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159 : 33,391.37 = 20,078.92 : x
  2. Step 2: Convert to fraction form
    22,159/33,391.37 = 20,078.92/x
  3. Step 3: Cross multiply
    22,159x = 33,391.37 × 20,078.92
  4. Step 4: Simplify right side
    22,159x = 670,462,646.92
  5. Step 5: Solve for x
    x = 670,462,646.92/22,159
  6. Step 6: Final answer
    x = 30,256.90

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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.