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Finding the Fourth Proportional to 18,297.96, 27,426.30 and 11,984.94

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Solution

The fourth proportional to 18,297.96, 27,426.30 and 11,984.94 is: 17,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.96 : 27,426.30 = 11,984.94 : x
  2. Step 2: Convert to fraction form
    18,297.96/27,426.30 = 11,984.94/x
  3. Step 3: Cross multiply
    18,297.96x = 27,426.30 × 11,984.94
  4. Step 4: Simplify right side
    18,297.96x = 328,702,559.92
  5. Step 5: Solve for x
    x = 328,702,559.92/18,297.96
  6. Step 6: Final answer
    x = 17,963.89

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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.