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Finding the Fourth Proportional to 8,593.35, 12,891.36 and 3,663

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Solution

The fourth proportional to 8,593.35, 12,891.36 and 3,663 is: 5,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.35 : 12,891.36 = 3,663 : x
  2. Step 2: Convert to fraction form
    8,593.35/12,891.36 = 3,663/x
  3. Step 3: Cross multiply
    8,593.35x = 12,891.36 × 3,663
  4. Step 4: Simplify right side
    8,593.35x = 47,221,051.68
  5. Step 5: Solve for x
    x = 47,221,051.68/8,593.35
  6. Step 6: Final answer
    x = 5,495.07

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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.