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Finding the Fourth Proportional to 18,634.93, 27,952.39 and 12,773.77

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Solution

The fourth proportional to 18,634.93, 27,952.39 and 12,773.77 is: 19,160.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.93 : 27,952.39 = 12,773.77 : x
  2. Step 2: Convert to fraction form
    18,634.93/27,952.39 = 12,773.77/x
  3. Step 3: Cross multiply
    18,634.93x = 27,952.39 × 12,773.77
  4. Step 4: Simplify right side
    18,634.93x = 357,057,346.90
  5. Step 5: Solve for x
    x = 357,057,346.90/18,634.93
  6. Step 6: Final answer
    x = 19,160.65

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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.