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Finding the Fourth Proportional to 11,448.54, 17,174.43 and 3,655.53

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Solution

The fourth proportional to 11,448.54, 17,174.43 and 3,655.53 is: 5,483.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.54 : 17,174.43 = 3,655.53 : x
  2. Step 2: Convert to fraction form
    11,448.54/17,174.43 = 3,655.53/x
  3. Step 3: Cross multiply
    11,448.54x = 17,174.43 × 3,655.53
  4. Step 4: Simplify right side
    11,448.54x = 62,781,644.10
  5. Step 5: Solve for x
    x = 62,781,644.10/11,448.54
  6. Step 6: Final answer
    x = 5,483.81

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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.