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Finding the Fourth Proportional to 61,797.87, 85,280.09 and 34,939.35

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Solution

The fourth proportional to 61,797.87, 85,280.09 and 34,939.35 is: 48,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797.87 : 85,280.09 = 34,939.35 : x
  2. Step 2: Convert to fraction form
    61,797.87/85,280.09 = 34,939.35/x
  3. Step 3: Cross multiply
    61,797.87x = 85,280.09 × 34,939.35
  4. Step 4: Simplify right side
    61,797.87x = 2,979,630,737.84
  5. Step 5: Solve for x
    x = 2,979,630,737.84/61,797.87
  6. Step 6: Final answer
    x = 48,215.75

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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.