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Finding the Fourth Proportional to 71,940.12, 107,923.32 and 22,019.64

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Solution

The fourth proportional to 71,940.12, 107,923.32 and 22,019.64 is: 33,033.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,940.12 : 107,923.32 = 22,019.64 : x
  2. Step 2: Convert to fraction form
    71,940.12/107,923.32 = 22,019.64/x
  3. Step 3: Cross multiply
    71,940.12x = 107,923.32 × 22,019.64
  4. Step 4: Simplify right side
    71,940.12x = 2,376,432,654.00
  5. Step 5: Solve for x
    x = 2,376,432,654.00/71,940.12
  6. Step 6: Final answer
    x = 33,033.48

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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.