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Finding the Fourth Proportional to 18,326.64, 27,491.94 and 6,637.26

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Solution

The fourth proportional to 18,326.64, 27,491.94 and 6,637.26 is: 9,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.64 : 27,491.94 = 6,637.26 : x
  2. Step 2: Convert to fraction form
    18,326.64/27,491.94 = 6,637.26/x
  3. Step 3: Cross multiply
    18,326.64x = 27,491.94 × 6,637.26
  4. Step 4: Simplify right side
    18,326.64x = 182,471,153.68
  5. Step 5: Solve for x
    x = 182,471,153.68/18,326.64
  6. Step 6: Final answer
    x = 9,956.61

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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.