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Finding the Fourth Proportional to 20,664.52, 30,992.12 and 5,873.11

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Solution

The fourth proportional to 20,664.52, 30,992.12 and 5,873.11 is: 8,808.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.52 : 30,992.12 = 5,873.11 : x
  2. Step 2: Convert to fraction form
    20,664.52/30,992.12 = 5,873.11/x
  3. Step 3: Cross multiply
    20,664.52x = 30,992.12 × 5,873.11
  4. Step 4: Simplify right side
    20,664.52x = 182,020,045.07
  5. Step 5: Solve for x
    x = 182,020,045.07/20,664.52
  6. Step 6: Final answer
    x = 8,808.34

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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.