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Finding the Fourth Proportional to 45,332.44, 67,981.02 and 15,338.65

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Solution

The fourth proportional to 45,332.44, 67,981.02 and 15,338.65 is: 23,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,332.44 : 67,981.02 = 15,338.65 : x
  2. Step 2: Convert to fraction form
    45,332.44/67,981.02 = 15,338.65/x
  3. Step 3: Cross multiply
    45,332.44x = 67,981.02 × 15,338.65
  4. Step 4: Simplify right side
    45,332.44x = 1,042,737,072.42
  5. Step 5: Solve for x
    x = 1,042,737,072.42/45,332.44
  6. Step 6: Final answer
    x = 23,002.01

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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.