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Finding the Fourth Proportional to 61,936.98, 85,472.94 and 35,079.45

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Solution

The fourth proportional to 61,936.98, 85,472.94 and 35,079.45 is: 48,409.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,936.98 : 85,472.94 = 35,079.45 : x
  2. Step 2: Convert to fraction form
    61,936.98/85,472.94 = 35,079.45/x
  3. Step 3: Cross multiply
    61,936.98x = 85,472.94 × 35,079.45
  4. Step 4: Simplify right side
    61,936.98x = 2,998,343,725.08
  5. Step 5: Solve for x
    x = 2,998,343,725.08/61,936.98
  6. Step 6: Final answer
    x = 48,409.59

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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.