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Finding the Fourth Proportional to 36,643.65, 54,968.71 and 19,996.53

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Solution

The fourth proportional to 36,643.65, 54,968.71 and 19,996.53 is: 29,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,643.65 : 54,968.71 = 19,996.53 : x
  2. Step 2: Convert to fraction form
    36,643.65/54,968.71 = 19,996.53/x
  3. Step 3: Cross multiply
    36,643.65x = 54,968.71 × 19,996.53
  4. Step 4: Simplify right side
    36,643.65x = 1,099,183,458.58
  5. Step 5: Solve for x
    x = 1,099,183,458.58/36,643.65
  6. Step 6: Final answer
    x = 29,996.56

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1.5x scale

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.