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Finding the Fourth Proportional to 67,584.65, 93,278.39 and 39,306.74

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Solution

The fourth proportional to 67,584.65, 93,278.39 and 39,306.74 is: 54,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,584.65 : 93,278.39 = 39,306.74 : x
  2. Step 2: Convert to fraction form
    67,584.65/93,278.39 = 39,306.74/x
  3. Step 3: Cross multiply
    67,584.65x = 93,278.39 × 39,306.74
  4. Step 4: Simplify right side
    67,584.65x = 3,666,468,760.42
  5. Step 5: Solve for x
    x = 3,666,468,760.42/67,584.65
  6. Step 6: Final answer
    x = 54,250.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.