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Finding the Fourth Proportional to 68,674.59, 94,772.01 and 39,586.91

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Solution

The fourth proportional to 68,674.59, 94,772.01 and 39,586.91 is: 54,630.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,674.59 : 94,772.01 = 39,586.91 : x
  2. Step 2: Convert to fraction form
    68,674.59/94,772.01 = 39,586.91/x
  3. Step 3: Cross multiply
    68,674.59x = 94,772.01 × 39,586.91
  4. Step 4: Simplify right side
    68,674.59x = 3,751,731,030.39
  5. Step 5: Solve for x
    x = 3,751,731,030.39/68,674.59
  6. Step 6: Final answer
    x = 54,630.56

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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.