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Finding the Fourth Proportional to 61,679.88, 92,396.50 and 28,354.25

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Solution

The fourth proportional to 61,679.88, 92,396.50 and 28,354.25 is: 42,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.88 : 92,396.50 = 28,354.25 : x
  2. Step 2: Convert to fraction form
    61,679.88/92,396.50 = 28,354.25/x
  3. Step 3: Cross multiply
    61,679.88x = 92,396.50 × 28,354.25
  4. Step 4: Simplify right side
    61,679.88x = 2,619,833,620.23
  5. Step 5: Solve for x
    x = 2,619,833,620.23/61,679.88
  6. Step 6: Final answer
    x = 42,474.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.