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Finding the Fourth Proportional to 7,321.95, 10,975.17 and 2,390.27

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Solution

The fourth proportional to 7,321.95, 10,975.17 and 2,390.27 is: 3,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.95 : 10,975.17 = 2,390.27 : x
  2. Step 2: Convert to fraction form
    7,321.95/10,975.17 = 2,390.27/x
  3. Step 3: Cross multiply
    7,321.95x = 10,975.17 × 2,390.27
  4. Step 4: Simplify right side
    7,321.95x = 26,233,564.72
  5. Step 5: Solve for x
    x = 26,233,564.72/7,321.95
  6. Step 6: Final answer
    x = 3,582.87

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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.