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Finding the Fourth Proportional to 18,264.68, 25,192.24 and 17,655

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Solution

The fourth proportional to 18,264.68, 25,192.24 and 17,655 is: 24,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.68 : 25,192.24 = 17,655 : x
  2. Step 2: Convert to fraction form
    18,264.68/25,192.24 = 17,655/x
  3. Step 3: Cross multiply
    18,264.68x = 25,192.24 × 17,655
  4. Step 4: Simplify right side
    18,264.68x = 444,768,997.20
  5. Step 5: Solve for x
    x = 444,768,997.20/18,264.68
  6. Step 6: Final answer
    x = 24,351.32

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Why These Related Problems?

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