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Finding the Fourth Proportional to 53,802.39, 80,716.53 and 16,866.39

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Solution

The fourth proportional to 53,802.39, 80,716.53 and 16,866.39 is: 25,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,802.39 : 80,716.53 = 16,866.39 : x
  2. Step 2: Convert to fraction form
    53,802.39/80,716.53 = 16,866.39/x
  3. Step 3: Cross multiply
    53,802.39x = 80,716.53 × 16,866.39
  4. Step 4: Simplify right side
    53,802.39x = 1,361,396,474.43
  5. Step 5: Solve for x
    x = 1,361,396,474.43/53,802.39
  6. Step 6: Final answer
    x = 25,303.64

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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.