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Finding the Fourth Proportional to 69,771.60, 104,642.76 and 23,013.52

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Solution

The fourth proportional to 69,771.60, 104,642.76 and 23,013.52 is: 34,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,771.60 : 104,642.76 = 23,013.52 : x
  2. Step 2: Convert to fraction form
    69,771.60/104,642.76 = 23,013.52/x
  3. Step 3: Cross multiply
    69,771.60x = 104,642.76 × 23,013.52
  4. Step 4: Simplify right side
    69,771.60x = 2,408,198,250.12
  5. Step 5: Solve for x
    x = 2,408,198,250.12/69,771.60
  6. Step 6: Final answer
    x = 34,515.45

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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.