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Finding the Fourth Proportional to 7,935.60, 11,869.38 and 7,723.38

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Solution

The fourth proportional to 7,935.60, 11,869.38 and 7,723.38 is: 11,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,935.60 : 11,869.38 = 7,723.38 : x
  2. Step 2: Convert to fraction form
    7,935.60/11,869.38 = 7,723.38/x
  3. Step 3: Cross multiply
    7,935.60x = 11,869.38 × 7,723.38
  4. Step 4: Simplify right side
    7,935.60x = 91,671,732.10
  5. Step 5: Solve for x
    x = 91,671,732.10/7,935.60
  6. Step 6: Final answer
    x = 11,551.96

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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.