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Finding the Fourth Proportional to 22,351.52, 33,661.16 and 20,358.63

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Solution

The fourth proportional to 22,351.52, 33,661.16 and 20,358.63 is: 30,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,351.52 : 33,661.16 = 20,358.63 : x
  2. Step 2: Convert to fraction form
    22,351.52/33,661.16 = 20,358.63/x
  3. Step 3: Cross multiply
    22,351.52x = 33,661.16 × 20,358.63
  4. Step 4: Simplify right side
    22,351.52x = 685,295,000.02
  5. Step 5: Solve for x
    x = 685,295,000.02/22,351.52
  6. Step 6: Final answer
    x = 30,659.89

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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.