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Finding the Fourth Proportional to 18,549.72, 25,599.78 and 10,166.22

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Solution

The fourth proportional to 18,549.72, 25,599.78 and 10,166.22 is: 14,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.72 : 25,599.78 = 10,166.22 : x
  2. Step 2: Convert to fraction form
    18,549.72/25,599.78 = 10,166.22/x
  3. Step 3: Cross multiply
    18,549.72x = 25,599.78 × 10,166.22
  4. Step 4: Simplify right side
    18,549.72x = 260,252,995.43
  5. Step 5: Solve for x
    x = 260,252,995.43/18,549.72
  6. Step 6: Final answer
    x = 14,030.02

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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.