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Finding the Fourth Proportional to 16,395.96, 24,611.22 and 7,639.32

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Solution

The fourth proportional to 16,395.96, 24,611.22 and 7,639.32 is: 11,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,395.96 : 24,611.22 = 7,639.32 : x
  2. Step 2: Convert to fraction form
    16,395.96/24,611.22 = 7,639.32/x
  3. Step 3: Cross multiply
    16,395.96x = 24,611.22 × 7,639.32
  4. Step 4: Simplify right side
    16,395.96x = 188,012,985.17
  5. Step 5: Solve for x
    x = 188,012,985.17/16,395.96
  6. Step 6: Final answer
    x = 11,467.03

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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.