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Finding the Fourth Proportional to 69,015.21, 103,544.69 and 24,640.98

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Solution

The fourth proportional to 69,015.21, 103,544.69 and 24,640.98 is: 36,969.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,015.21 : 103,544.69 = 24,640.98 : x
  2. Step 2: Convert to fraction form
    69,015.21/103,544.69 = 24,640.98/x
  3. Step 3: Cross multiply
    69,015.21x = 103,544.69 × 24,640.98
  4. Step 4: Simplify right side
    69,015.21x = 2,551,442,635.40
  5. Step 5: Solve for x
    x = 2,551,442,635.40/69,015.21
  6. Step 6: Final answer
    x = 36,969.28

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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.