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Finding the Fourth Proportional to 18,509.61, 27,764.16 and 4,469.52

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Solution

The fourth proportional to 18,509.61, 27,764.16 and 4,469.52 is: 6,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.61 : 27,764.16 = 4,469.52 : x
  2. Step 2: Convert to fraction form
    18,509.61/27,764.16 = 4,469.52/x
  3. Step 3: Cross multiply
    18,509.61x = 27,764.16 × 4,469.52
  4. Step 4: Simplify right side
    18,509.61x = 124,092,468.40
  5. Step 5: Solve for x
    x = 124,092,468.40/18,509.61
  6. Step 6: Final answer
    x = 6,704.22

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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.