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Finding the Fourth Proportional to 22,604.80, 34,036.48 and 21,222.40

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Solution

The fourth proportional to 22,604.80, 34,036.48 and 21,222.40 is: 31,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,604.80 : 34,036.48 = 21,222.40 : x
  2. Step 2: Convert to fraction form
    22,604.80/34,036.48 = 21,222.40/x
  3. Step 3: Cross multiply
    22,604.80x = 34,036.48 × 21,222.40
  4. Step 4: Simplify right side
    22,604.80x = 722,335,793.15
  5. Step 5: Solve for x
    x = 722,335,793.15/22,604.80
  6. Step 6: Final answer
    x = 31,954.97

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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.