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Finding the Fourth Proportional to 34,836.69, 48,073.84 and 18,920.80

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Solution

The fourth proportional to 34,836.69, 48,073.84 and 18,920.80 is: 26,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,836.69 : 48,073.84 = 18,920.80 : x
  2. Step 2: Convert to fraction form
    34,836.69/48,073.84 = 18,920.80/x
  3. Step 3: Cross multiply
    34,836.69x = 48,073.84 × 18,920.80
  4. Step 4: Simplify right side
    34,836.69x = 909,595,344.39
  5. Step 5: Solve for x
    x = 909,595,344.39/34,836.69
  6. Step 6: Final answer
    x = 26,110.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.