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Finding the Fourth Proportional to 64,960.58, 89,639.66 and 38,098.15

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Solution

The fourth proportional to 64,960.58, 89,639.66 and 38,098.15 is: 52,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,960.58 : 89,639.66 = 38,098.15 : x
  2. Step 2: Convert to fraction form
    64,960.58/89,639.66 = 38,098.15/x
  3. Step 3: Cross multiply
    64,960.58x = 89,639.66 × 38,098.15
  4. Step 4: Simplify right side
    64,960.58x = 3,415,105,083.78
  5. Step 5: Solve for x
    x = 3,415,105,083.78/64,960.58
  6. Step 6: Final answer
    x = 52,571.96

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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.