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Finding the Fourth Proportional to 15,666.22, 21,619.68 and 8,593

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Solution

The fourth proportional to 15,666.22, 21,619.68 and 8,593 is: 11,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,666.22 : 21,619.68 = 8,593 : x
  2. Step 2: Convert to fraction form
    15,666.22/21,619.68 = 8,593/x
  3. Step 3: Cross multiply
    15,666.22x = 21,619.68 × 8,593
  4. Step 4: Simplify right side
    15,666.22x = 185,777,910.24
  5. Step 5: Solve for x
    x = 185,777,910.24/15,666.22
  6. Step 6: Final answer
    x = 11,858.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.