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Finding the Fourth Proportional to 22,612.91, 33,754.67 and 20,945.33

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Solution

The fourth proportional to 22,612.91, 33,754.67 and 20,945.33 is: 31,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.91 : 33,754.67 = 20,945.33 : x
  2. Step 2: Convert to fraction form
    22,612.91/33,754.67 = 20,945.33/x
  3. Step 3: Cross multiply
    22,612.91x = 33,754.67 × 20,945.33
  4. Step 4: Simplify right side
    22,612.91x = 707,002,702.19
  5. Step 5: Solve for x
    x = 707,002,702.19/22,612.91
  6. Step 6: Final answer
    x = 31,265.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.