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Finding the Fourth Proportional to 43,865.72, 65,823.66 and 18,563.24

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Solution

The fourth proportional to 43,865.72, 65,823.66 and 18,563.24 is: 27,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,865.72 : 65,823.66 = 18,563.24 : x
  2. Step 2: Convert to fraction form
    43,865.72/65,823.66 = 18,563.24/x
  3. Step 3: Cross multiply
    43,865.72x = 65,823.66 × 18,563.24
  4. Step 4: Simplify right side
    43,865.72x = 1,221,900,398.26
  5. Step 5: Solve for x
    x = 1,221,900,398.26/43,865.72
  6. Step 6: Final answer
    x = 27,855.47

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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.