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Finding the Fourth Proportional to 47,810.80, 71,716.20 and 26,729.20

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Solution

The fourth proportional to 47,810.80, 71,716.20 and 26,729.20 is: 40,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,810.80 : 71,716.20 = 26,729.20 : x
  2. Step 2: Convert to fraction form
    47,810.80/71,716.20 = 26,729.20/x
  3. Step 3: Cross multiply
    47,810.80x = 71,716.20 × 26,729.20
  4. Step 4: Simplify right side
    47,810.80x = 1,916,916,653.04
  5. Step 5: Solve for x
    x = 1,916,916,653.04/47,810.80
  6. Step 6: Final answer
    x = 40,093.80

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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.