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Finding the Fourth Proportional to 69,984.35, 105,007.54 and 36,696.51

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Solution

The fourth proportional to 69,984.35, 105,007.54 and 36,696.51 is: 55,061.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984.35 : 105,007.54 = 36,696.51 : x
  2. Step 2: Convert to fraction form
    69,984.35/105,007.54 = 36,696.51/x
  3. Step 3: Cross multiply
    69,984.35x = 105,007.54 × 36,696.51
  4. Step 4: Simplify right side
    69,984.35x = 3,853,410,241.69
  5. Step 5: Solve for x
    x = 3,853,410,241.69/69,984.35
  6. Step 6: Final answer
    x = 55,061.03

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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.