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Finding the Fourth Proportional to 40,672.70, 61,002.74 and 11,092.94

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Solution

The fourth proportional to 40,672.70, 61,002.74 and 11,092.94 is: 16,637.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,672.70 : 61,002.74 = 11,092.94 : x
  2. Step 2: Convert to fraction form
    40,672.70/61,002.74 = 11,092.94/x
  3. Step 3: Cross multiply
    40,672.70x = 61,002.74 × 11,092.94
  4. Step 4: Simplify right side
    40,672.70x = 676,699,734.66
  5. Step 5: Solve for x
    x = 676,699,734.66/40,672.70
  6. Step 6: Final answer
    x = 16,637.69

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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.