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Finding the Fourth Proportional to 61,692.79, 85,132.61 and 34,840.75

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Solution

The fourth proportional to 61,692.79, 85,132.61 and 34,840.75 is: 48,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,692.79 : 85,132.61 = 34,840.75 : x
  2. Step 2: Convert to fraction form
    61,692.79/85,132.61 = 34,840.75/x
  3. Step 3: Cross multiply
    61,692.79x = 85,132.61 × 34,840.75
  4. Step 4: Simplify right side
    61,692.79x = 2,966,083,807.65
  5. Step 5: Solve for x
    x = 2,966,083,807.65/61,692.79
  6. Step 6: Final answer
    x = 48,078.29

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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.