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Finding the Fourth Proportional to 8,593.74, 12,887.90 and 3,328.38

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Solution

The fourth proportional to 8,593.74, 12,887.90 and 3,328.38 is: 4,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.74 : 12,887.90 = 3,328.38 : x
  2. Step 2: Convert to fraction form
    8,593.74/12,887.90 = 3,328.38/x
  3. Step 3: Cross multiply
    8,593.74x = 12,887.90 × 3,328.38
  4. Step 4: Simplify right side
    8,593.74x = 42,895,828.60
  5. Step 5: Solve for x
    x = 42,895,828.60/8,593.74
  6. Step 6: Final answer
    x = 4,991.52

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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.