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Finding the Fourth Proportional to 18,207.72, 25,127.55 and 10,250.82

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Solution

The fourth proportional to 18,207.72, 25,127.55 and 10,250.82 is: 14,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.72 : 25,127.55 = 10,250.82 : x
  2. Step 2: Convert to fraction form
    18,207.72/25,127.55 = 10,250.82/x
  3. Step 3: Cross multiply
    18,207.72x = 25,127.55 × 10,250.82
  4. Step 4: Simplify right side
    18,207.72x = 257,577,992.09
  5. Step 5: Solve for x
    x = 257,577,992.09/18,207.72
  6. Step 6: Final answer
    x = 14,146.64

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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.