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Finding the Fourth Proportional to 7,091.66, 10,623.16 and 3,576.78

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Solution

The fourth proportional to 7,091.66, 10,623.16 and 3,576.78 is: 5,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.66 : 10,623.16 = 3,576.78 : x
  2. Step 2: Convert to fraction form
    7,091.66/10,623.16 = 3,576.78/x
  3. Step 3: Cross multiply
    7,091.66x = 10,623.16 × 3,576.78
  4. Step 4: Simplify right side
    7,091.66x = 37,996,710.70
  5. Step 5: Solve for x
    x = 37,996,710.70/7,091.66
  6. Step 6: Final answer
    x = 5,357.94

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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.