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Finding the Fourth Proportional to 22,815.95, 34,224.02 and 7,020.88

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Solution

The fourth proportional to 22,815.95, 34,224.02 and 7,020.88 is: 10,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,815.95 : 34,224.02 = 7,020.88 : x
  2. Step 2: Convert to fraction form
    22,815.95/34,224.02 = 7,020.88/x
  3. Step 3: Cross multiply
    22,815.95x = 34,224.02 × 7,020.88
  4. Step 4: Simplify right side
    22,815.95x = 240,282,737.54
  5. Step 5: Solve for x
    x = 240,282,737.54/22,815.95
  6. Step 6: Final answer
    x = 10,531.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.