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Finding the Fourth Proportional to 23,304.65, 34,780.90 and 21,724.54

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Solution

The fourth proportional to 23,304.65, 34,780.90 and 21,724.54 is: 32,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,304.65 : 34,780.90 = 21,724.54 : x
  2. Step 2: Convert to fraction form
    23,304.65/34,780.90 = 21,724.54/x
  3. Step 3: Cross multiply
    23,304.65x = 34,780.90 × 21,724.54
  4. Step 4: Simplify right side
    23,304.65x = 755,598,879.38
  5. Step 5: Solve for x
    x = 755,598,879.38/23,304.65
  6. Step 6: Final answer
    x = 32,422.67

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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.