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Finding the Fourth Proportional to 71,844.45, 107,783.43 and 21,924.45

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Solution

The fourth proportional to 71,844.45, 107,783.43 and 21,924.45 is: 32,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,844.45 : 107,783.43 = 21,924.45 : x
  2. Step 2: Convert to fraction form
    71,844.45/107,783.43 = 21,924.45/x
  3. Step 3: Cross multiply
    71,844.45x = 107,783.43 × 21,924.45
  4. Step 4: Simplify right side
    71,844.45x = 2,363,092,421.86
  5. Step 5: Solve for x
    x = 2,363,092,421.86/71,844.45
  6. Step 6: Final answer
    x = 32,891.79

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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.