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Finding the Fourth Proportional to 18,142.73, 27,184.95 and 15,226.73

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Solution

The fourth proportional to 18,142.73, 27,184.95 and 15,226.73 is: 22,815.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.73 : 27,184.95 = 15,226.73 : x
  2. Step 2: Convert to fraction form
    18,142.73/27,184.95 = 15,226.73/x
  3. Step 3: Cross multiply
    18,142.73x = 27,184.95 × 15,226.73
  4. Step 4: Simplify right side
    18,142.73x = 413,937,893.71
  5. Step 5: Solve for x
    x = 413,937,893.71/18,142.73
  6. Step 6: Final answer
    x = 22,815.63

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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.