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Finding the Fourth Proportional to 68,361.57, 94,324.87 and 39,284.31

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Solution

The fourth proportional to 68,361.57, 94,324.87 and 39,284.31 is: 54,204.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361.57 : 94,324.87 = 39,284.31 : x
  2. Step 2: Convert to fraction form
    68,361.57/94,324.87 = 39,284.31/x
  3. Step 3: Cross multiply
    68,361.57x = 94,324.87 × 39,284.31
  4. Step 4: Simplify right side
    68,361.57x = 3,705,487,836.61
  5. Step 5: Solve for x
    x = 3,705,487,836.61/68,361.57
  6. Step 6: Final answer
    x = 54,204.25

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1.5x scale

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.