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Finding the Fourth Proportional to 18,661.66, 27,996.44 and 6,180.98

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Solution

The fourth proportional to 18,661.66, 27,996.44 and 6,180.98 is: 9,272.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.66 : 27,996.44 = 6,180.98 : x
  2. Step 2: Convert to fraction form
    18,661.66/27,996.44 = 6,180.98/x
  3. Step 3: Cross multiply
    18,661.66x = 27,996.44 × 6,180.98
  4. Step 4: Simplify right side
    18,661.66x = 173,045,264.82
  5. Step 5: Solve for x
    x = 173,045,264.82/18,661.66
  6. Step 6: Final answer
    x = 9,272.77

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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.