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Finding the Fourth Proportional to 61,415.98, 84,754.42 and 34,558.94

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Solution

The fourth proportional to 61,415.98, 84,754.42 and 34,558.94 is: 47,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,415.98 : 84,754.42 = 34,558.94 : x
  2. Step 2: Convert to fraction form
    61,415.98/84,754.42 = 34,558.94/x
  3. Step 3: Cross multiply
    61,415.98x = 84,754.42 × 34,558.94
  4. Step 4: Simplify right side
    61,415.98x = 2,929,022,915.51
  5. Step 5: Solve for x
    x = 2,929,022,915.51/61,415.98
  6. Step 6: Final answer
    x = 47,691.54

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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.