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Finding the Fourth Proportional to 69,798.31, 96,326.69 and 39,586.25

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Solution

The fourth proportional to 69,798.31, 96,326.69 and 39,586.25 is: 54,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,798.31 : 96,326.69 = 39,586.25 : x
  2. Step 2: Convert to fraction form
    69,798.31/96,326.69 = 39,586.25/x
  3. Step 3: Cross multiply
    69,798.31x = 96,326.69 × 39,586.25
  4. Step 4: Simplify right side
    69,798.31x = 3,813,212,474.90
  5. Step 5: Solve for x
    x = 3,813,212,474.90/69,798.31
  6. Step 6: Final answer
    x = 54,631.88

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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.