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Finding the Fourth Proportional to 68,563.62, 94,615.88 and 38,349

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Solution

The fourth proportional to 68,563.62, 94,615.88 and 38,349 is: 52,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,563.62 : 94,615.88 = 38,349 : x
  2. Step 2: Convert to fraction form
    68,563.62/94,615.88 = 38,349/x
  3. Step 3: Cross multiply
    68,563.62x = 94,615.88 × 38,349
  4. Step 4: Simplify right side
    68,563.62x = 3,628,424,382.12
  5. Step 5: Solve for x
    x = 3,628,424,382.12/68,563.62
  6. Step 6: Final answer
    x = 52,920.55

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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.