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Finding the Fourth Proportional to 14,992.97, 22,490.87 and 3,899.61

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Solution

The fourth proportional to 14,992.97, 22,490.87 and 3,899.61 is: 5,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.97 : 22,490.87 = 3,899.61 : x
  2. Step 2: Convert to fraction form
    14,992.97/22,490.87 = 3,899.61/x
  3. Step 3: Cross multiply
    14,992.97x = 22,490.87 × 3,899.61
  4. Step 4: Simplify right side
    14,992.97x = 87,705,602.06
  5. Step 5: Solve for x
    x = 87,705,602.06/14,992.97
  6. Step 6: Final answer
    x = 5,849.78

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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.