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Finding the Fourth Proportional to 18,992.52, 28,489.14 and 6,526.86

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Solution

The fourth proportional to 18,992.52, 28,489.14 and 6,526.86 is: 9,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.52 : 28,489.14 = 6,526.86 : x
  2. Step 2: Convert to fraction form
    18,992.52/28,489.14 = 6,526.86/x
  3. Step 3: Cross multiply
    18,992.52x = 28,489.14 × 6,526.86
  4. Step 4: Simplify right side
    18,992.52x = 185,944,628.30
  5. Step 5: Solve for x
    x = 185,944,628.30/18,992.52
  6. Step 6: Final answer
    x = 9,790.41

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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.