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Finding the Fourth Proportional to 71,992.05, 108,008.79 and 22,079.51

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Solution

The fourth proportional to 71,992.05, 108,008.79 and 22,079.51 is: 33,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,992.05 : 108,008.79 = 22,079.51 : x
  2. Step 2: Convert to fraction form
    71,992.05/108,008.79 = 22,079.51/x
  3. Step 3: Cross multiply
    71,992.05x = 108,008.79 × 22,079.51
  4. Step 4: Simplify right side
    71,992.05x = 2,384,781,158.89
  5. Step 5: Solve for x
    x = 2,384,781,158.89/71,992.05
  6. Step 6: Final answer
    x = 33,125.62

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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.