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Finding the Fourth Proportional to 67,631.63, 93,335.19 and 38,955.65

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Solution

The fourth proportional to 67,631.63, 93,335.19 and 38,955.65 is: 53,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,631.63 : 93,335.19 = 38,955.65 : x
  2. Step 2: Convert to fraction form
    67,631.63/93,335.19 = 38,955.65/x
  3. Step 3: Cross multiply
    67,631.63x = 93,335.19 × 38,955.65
  4. Step 4: Simplify right side
    67,631.63x = 3,635,932,994.32
  5. Step 5: Solve for x
    x = 3,635,932,994.32/67,631.63
  6. Step 6: Final answer
    x = 53,760.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.