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Finding the Fourth Proportional to 18,603.84, 25,673 and 11,053.82

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Solution

The fourth proportional to 18,603.84, 25,673 and 11,053.82 is: 15,254.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.84 : 25,673 = 11,053.82 : x
  2. Step 2: Convert to fraction form
    18,603.84/25,673 = 11,053.82/x
  3. Step 3: Cross multiply
    18,603.84x = 25,673 × 11,053.82
  4. Step 4: Simplify right side
    18,603.84x = 283,784,720.86
  5. Step 5: Solve for x
    x = 283,784,720.86/18,603.84
  6. Step 6: Final answer
    x = 15,254.09

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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.