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Finding the Fourth Proportional to 35,296.80, 48,706.41 and 19,380.90

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Solution

The fourth proportional to 35,296.80, 48,706.41 and 19,380.90 is: 26,743.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,296.80 : 48,706.41 = 19,380.90 : x
  2. Step 2: Convert to fraction form
    35,296.80/48,706.41 = 19,380.90/x
  3. Step 3: Cross multiply
    35,296.80x = 48,706.41 × 19,380.90
  4. Step 4: Simplify right side
    35,296.80x = 943,974,061.57
  5. Step 5: Solve for x
    x = 943,974,061.57/35,296.80
  6. Step 6: Final answer
    x = 26,743.90

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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.