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Finding the Fourth Proportional to 17,127.11, 25,753.12 and 15,756.99

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Solution

The fourth proportional to 17,127.11, 25,753.12 and 15,756.99 is: 23,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,127.11 : 25,753.12 = 15,756.99 : x
  2. Step 2: Convert to fraction form
    17,127.11/25,753.12 = 15,756.99/x
  3. Step 3: Cross multiply
    17,127.11x = 25,753.12 × 15,756.99
  4. Step 4: Simplify right side
    17,127.11x = 405,791,754.81
  5. Step 5: Solve for x
    x = 405,791,754.81/17,127.11
  6. Step 6: Final answer
    x = 23,692.94

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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.