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Finding the Fourth Proportional to 15,960.66, 23,908.98 and 9,631.92

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Solution

The fourth proportional to 15,960.66, 23,908.98 and 9,631.92 is: 14,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.66 : 23,908.98 = 9,631.92 : x
  2. Step 2: Convert to fraction form
    15,960.66/23,908.98 = 9,631.92/x
  3. Step 3: Cross multiply
    15,960.66x = 23,908.98 × 9,631.92
  4. Step 4: Simplify right side
    15,960.66x = 230,289,382.64
  5. Step 5: Solve for x
    x = 230,289,382.64/15,960.66
  6. Step 6: Final answer
    x = 14,428.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.