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Finding the Fourth Proportional to 24,601.80, 36,870.30 and 21,815.40

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Solution

The fourth proportional to 24,601.80, 36,870.30 and 21,815.40 is: 32,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,601.80 : 36,870.30 = 21,815.40 : x
  2. Step 2: Convert to fraction form
    24,601.80/36,870.30 = 21,815.40/x
  3. Step 3: Cross multiply
    24,601.80x = 36,870.30 × 21,815.40
  4. Step 4: Simplify right side
    24,601.80x = 804,340,342.62
  5. Step 5: Solve for x
    x = 804,340,342.62/24,601.80
  6. Step 6: Final answer
    x = 32,694.37

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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.