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Finding the Fourth Proportional to 69,970.87, 96,562.41 and 39,761.32

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Solution

The fourth proportional to 69,970.87, 96,562.41 and 39,761.32 is: 54,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,970.87 : 96,562.41 = 39,761.32 : x
  2. Step 2: Convert to fraction form
    69,970.87/96,562.41 = 39,761.32/x
  3. Step 3: Cross multiply
    69,970.87x = 96,562.41 × 39,761.32
  4. Step 4: Simplify right side
    69,970.87x = 3,839,448,883.98
  5. Step 5: Solve for x
    x = 3,839,448,883.98/69,970.87
  6. Step 6: Final answer
    x = 54,872.10

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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.