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Finding the Fourth Proportional to 11,369.76, 17,056.80 and 3,976.32

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Solution

The fourth proportional to 11,369.76, 17,056.80 and 3,976.32 is: 5,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,369.76 : 17,056.80 = 3,976.32 : x
  2. Step 2: Convert to fraction form
    11,369.76/17,056.80 = 3,976.32/x
  3. Step 3: Cross multiply
    11,369.76x = 17,056.80 × 3,976.32
  4. Step 4: Simplify right side
    11,369.76x = 67,823,294.98
  5. Step 5: Solve for x
    x = 67,823,294.98/11,369.76
  6. Step 6: Final answer
    x = 5,965.24

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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.