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Finding the Fourth Proportional to 67,878.93, 93,678.05 and 37,669.96

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Solution

The fourth proportional to 67,878.93, 93,678.05 and 37,669.96 is: 51,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878.93 : 93,678.05 = 37,669.96 : x
  2. Step 2: Convert to fraction form
    67,878.93/93,678.05 = 37,669.96/x
  3. Step 3: Cross multiply
    67,878.93x = 93,678.05 × 37,669.96
  4. Step 4: Simplify right side
    67,878.93x = 3,528,848,396.38
  5. Step 5: Solve for x
    x = 3,528,848,396.38/67,878.93
  6. Step 6: Final answer
    x = 51,987.39

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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.