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Finding the Fourth Proportional to 43,860.69, 65,819.18 and 43,503.99

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Solution

The fourth proportional to 43,860.69, 65,819.18 and 43,503.99 is: 65,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,860.69 : 65,819.18 = 43,503.99 : x
  2. Step 2: Convert to fraction form
    43,860.69/65,819.18 = 43,503.99/x
  3. Step 3: Cross multiply
    43,860.69x = 65,819.18 × 43,503.99
  4. Step 4: Simplify right side
    43,860.69x = 2,863,396,810.47
  5. Step 5: Solve for x
    x = 2,863,396,810.47/43,860.69
  6. Step 6: Final answer
    x = 65,283.90

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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.