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Finding the Fourth Proportional to 68,346.48, 94,318.92 and 38,538.48

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Solution

The fourth proportional to 68,346.48, 94,318.92 and 38,538.48 is: 53,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,346.48 : 94,318.92 = 38,538.48 : x
  2. Step 2: Convert to fraction form
    68,346.48/94,318.92 = 38,538.48/x
  3. Step 3: Cross multiply
    68,346.48x = 94,318.92 × 38,538.48
  4. Step 4: Simplify right side
    68,346.48x = 3,634,907,812.04
  5. Step 5: Solve for x
    x = 3,634,907,812.04/68,346.48
  6. Step 6: Final answer
    x = 53,183.54

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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.