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Finding the Fourth Proportional to 18,005.04, 26,994.96 and 8,633.88

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Solution

The fourth proportional to 18,005.04, 26,994.96 and 8,633.88 is: 12,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.04 : 26,994.96 = 8,633.88 : x
  2. Step 2: Convert to fraction form
    18,005.04/26,994.96 = 8,633.88/x
  3. Step 3: Cross multiply
    18,005.04x = 26,994.96 × 8,633.88
  4. Step 4: Simplify right side
    18,005.04x = 233,071,245.24
  5. Step 5: Solve for x
    x = 233,071,245.24/18,005.04
  6. Step 6: Final answer
    x = 12,944.78

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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.