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Finding the Fourth Proportional to 18,536.72, 27,788.78 and 9,633.30

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Solution

The fourth proportional to 18,536.72, 27,788.78 and 9,633.30 is: 14,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.72 : 27,788.78 = 9,633.30 : x
  2. Step 2: Convert to fraction form
    18,536.72/27,788.78 = 9,633.30/x
  3. Step 3: Cross multiply
    18,536.72x = 27,788.78 × 9,633.30
  4. Step 4: Simplify right side
    18,536.72x = 267,697,606.21
  5. Step 5: Solve for x
    x = 267,697,606.21/18,536.72
  6. Step 6: Final answer
    x = 14,441.48

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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.