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Finding the Fourth Proportional to 67,855.91, 93,641.06 and 37,645.81

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Solution

The fourth proportional to 67,855.91, 93,641.06 and 37,645.81 is: 51,951.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,855.91 : 93,641.06 = 37,645.81 : x
  2. Step 2: Convert to fraction form
    67,855.91/93,641.06 = 37,645.81/x
  3. Step 3: Cross multiply
    67,855.91x = 93,641.06 × 37,645.81
  4. Step 4: Simplify right side
    67,855.91x = 3,525,193,412.97
  5. Step 5: Solve for x
    x = 3,525,193,412.97/67,855.91
  6. Step 6: Final answer
    x = 51,951.17

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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.