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Finding the Fourth Proportional to 10,942.50, 15,082.50 and 7,751.71

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Solution

The fourth proportional to 10,942.50, 15,082.50 and 7,751.71 is: 10,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.50 : 15,082.50 = 7,751.71 : x
  2. Step 2: Convert to fraction form
    10,942.50/15,082.50 = 7,751.71/x
  3. Step 3: Cross multiply
    10,942.50x = 15,082.50 × 7,751.71
  4. Step 4: Simplify right side
    10,942.50x = 116,915,106.17
  5. Step 5: Solve for x
    x = 116,915,106.17/10,942.50
  6. Step 6: Final answer
    x = 10,684.50

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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.