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Finding the Fourth Proportional to 18,490.82, 27,736.22 and 16,887.02

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Solution

The fourth proportional to 18,490.82, 27,736.22 and 16,887.02 is: 25,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.82 : 27,736.22 = 16,887.02 : x
  2. Step 2: Convert to fraction form
    18,490.82/27,736.22 = 16,887.02/x
  3. Step 3: Cross multiply
    18,490.82x = 27,736.22 × 16,887.02
  4. Step 4: Simplify right side
    18,490.82x = 468,382,005.40
  5. Step 5: Solve for x
    x = 468,382,005.40/18,490.82
  6. Step 6: Final answer
    x = 25,330.52

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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.