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Finding the Fourth Proportional to 69,879.98, 104,787.70 and 22,486.25

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Solution

The fourth proportional to 69,879.98, 104,787.70 and 22,486.25 is: 33,718.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.98 : 104,787.70 = 22,486.25 : x
  2. Step 2: Convert to fraction form
    69,879.98/104,787.70 = 22,486.25/x
  3. Step 3: Cross multiply
    69,879.98x = 104,787.70 × 22,486.25
  4. Step 4: Simplify right side
    69,879.98x = 2,356,281,838.97
  5. Step 5: Solve for x
    x = 2,356,281,838.97/69,879.98
  6. Step 6: Final answer
    x = 33,718.99

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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.