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Finding the Fourth Proportional to 67,833.82, 93,616.59 and 39,538.90

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Solution

The fourth proportional to 67,833.82, 93,616.59 and 39,538.90 is: 54,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,833.82 : 93,616.59 = 39,538.90 : x
  2. Step 2: Convert to fraction form
    67,833.82/93,616.59 = 39,538.90/x
  3. Step 3: Cross multiply
    67,833.82x = 93,616.59 × 39,538.90
  4. Step 4: Simplify right side
    67,833.82x = 3,701,496,990.35
  5. Step 5: Solve for x
    x = 3,701,496,990.35/67,833.82
  6. Step 6: Final answer
    x = 54,567.13

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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.