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Finding the Fourth Proportional to 8,697.47, 13,067.01 and 5,583.56

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Solution

The fourth proportional to 8,697.47, 13,067.01 and 5,583.56 is: 8,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.47 : 13,067.01 = 5,583.56 : x
  2. Step 2: Convert to fraction form
    8,697.47/13,067.01 = 5,583.56/x
  3. Step 3: Cross multiply
    8,697.47x = 13,067.01 × 5,583.56
  4. Step 4: Simplify right side
    8,697.47x = 72,960,369.02
  5. Step 5: Solve for x
    x = 72,960,369.02/8,697.47
  6. Step 6: Final answer
    x = 8,388.69

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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.