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Finding the Fourth Proportional to 34,869.71, 48,118.62 and 19,761.49

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Solution

The fourth proportional to 34,869.71, 48,118.62 and 19,761.49 is: 27,269.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,869.71 : 48,118.62 = 19,761.49 : x
  2. Step 2: Convert to fraction form
    34,869.71/48,118.62 = 19,761.49/x
  3. Step 3: Cross multiply
    34,869.71x = 48,118.62 × 19,761.49
  4. Step 4: Simplify right side
    34,869.71x = 950,895,627.94
  5. Step 5: Solve for x
    x = 950,895,627.94/34,869.71
  6. Step 6: Final answer
    x = 27,269.96

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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.