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Finding the Fourth Proportional to 61,960.86, 92,865.15 and 28,635.84

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Solution

The fourth proportional to 61,960.86, 92,865.15 and 28,635.84 is: 42,918.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,960.86 : 92,865.15 = 28,635.84 : x
  2. Step 2: Convert to fraction form
    61,960.86/92,865.15 = 28,635.84/x
  3. Step 3: Cross multiply
    61,960.86x = 92,865.15 × 28,635.84
  4. Step 4: Simplify right side
    61,960.86x = 2,659,271,576.98
  5. Step 5: Solve for x
    x = 2,659,271,576.98/61,960.86
  6. Step 6: Final answer
    x = 42,918.57

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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.