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Finding the Fourth Proportional to 61,798.38, 85,280.85 and 34,939.98

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Solution

The fourth proportional to 61,798.38, 85,280.85 and 34,939.98 is: 48,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.38 : 85,280.85 = 34,939.98 : x
  2. Step 2: Convert to fraction form
    61,798.38/85,280.85 = 34,939.98/x
  3. Step 3: Cross multiply
    61,798.38x = 85,280.85 × 34,939.98
  4. Step 4: Simplify right side
    61,798.38x = 2,979,711,193.38
  5. Step 5: Solve for x
    x = 2,979,711,193.38/61,798.38
  6. Step 6: Final answer
    x = 48,216.66

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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.