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Finding the Fourth Proportional to 43,363.65, 65,055.66 and 18,404.82

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Solution

The fourth proportional to 43,363.65, 65,055.66 and 18,404.82 is: 27,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,363.65 : 65,055.66 = 18,404.82 : x
  2. Step 2: Convert to fraction form
    43,363.65/65,055.66 = 18,404.82/x
  3. Step 3: Cross multiply
    43,363.65x = 65,055.66 × 18,404.82
  4. Step 4: Simplify right side
    43,363.65x = 1,197,337,643.26
  5. Step 5: Solve for x
    x = 1,197,337,643.26/43,363.65
  6. Step 6: Final answer
    x = 27,611.55

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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.