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Finding the Fourth Proportional to 18,443.58, 27,652.41 and 6,755.28

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Solution

The fourth proportional to 18,443.58, 27,652.41 and 6,755.28 is: 10,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.58 : 27,652.41 = 6,755.28 : x
  2. Step 2: Convert to fraction form
    18,443.58/27,652.41 = 6,755.28/x
  3. Step 3: Cross multiply
    18,443.58x = 27,652.41 × 6,755.28
  4. Step 4: Simplify right side
    18,443.58x = 186,799,772.22
  5. Step 5: Solve for x
    x = 186,799,772.22/18,443.58
  6. Step 6: Final answer
    x = 10,128.17

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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.