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Finding the Fourth Proportional to 61,939.62, 92,909.43 and 26,878.50

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Solution

The fourth proportional to 61,939.62, 92,909.43 and 26,878.50 is: 40,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,939.62 : 92,909.43 = 26,878.50 : x
  2. Step 2: Convert to fraction form
    61,939.62/92,909.43 = 26,878.50/x
  3. Step 3: Cross multiply
    61,939.62x = 92,909.43 × 26,878.50
  4. Step 4: Simplify right side
    61,939.62x = 2,497,266,114.26
  5. Step 5: Solve for x
    x = 2,497,266,114.26/61,939.62
  6. Step 6: Final answer
    x = 40,317.75

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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.