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Finding the Fourth Proportional to 68,717.59, 94,840.29 and 38,504.97

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Solution

The fourth proportional to 68,717.59, 94,840.29 and 38,504.97 is: 53,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.59 : 94,840.29 = 38,504.97 : x
  2. Step 2: Convert to fraction form
    68,717.59/94,840.29 = 38,504.97/x
  3. Step 3: Cross multiply
    68,717.59x = 94,840.29 × 38,504.97
  4. Step 4: Simplify right side
    68,717.59x = 3,651,822,629.54
  5. Step 5: Solve for x
    x = 3,651,822,629.54/68,717.59
  6. Step 6: Final answer
    x = 53,142.47

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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.