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Finding the Fourth Proportional to 19,023.93, 28,542.66 and 8,493

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Solution

The fourth proportional to 19,023.93, 28,542.66 and 8,493 is: 12,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,023.93 : 28,542.66 = 8,493 : x
  2. Step 2: Convert to fraction form
    19,023.93/28,542.66 = 8,493/x
  3. Step 3: Cross multiply
    19,023.93x = 28,542.66 × 8,493
  4. Step 4: Simplify right side
    19,023.93x = 242,412,811.38
  5. Step 5: Solve for x
    x = 242,412,811.38/19,023.93
  6. Step 6: Final answer
    x = 12,742.52

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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.