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Finding the Fourth Proportional to 7,317.87, 10,976.81 and 3,425.01

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Solution

The fourth proportional to 7,317.87, 10,976.81 and 3,425.01 is: 5,137.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317.87 : 10,976.81 = 3,425.01 : x
  2. Step 2: Convert to fraction form
    7,317.87/10,976.81 = 3,425.01/x
  3. Step 3: Cross multiply
    7,317.87x = 10,976.81 × 3,425.01
  4. Step 4: Simplify right side
    7,317.87x = 37,595,666.89
  5. Step 5: Solve for x
    x = 37,595,666.89/7,317.87
  6. Step 6: Final answer
    x = 5,137.52

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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.