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Finding the Fourth Proportional to 18,329.76, 27,494.63 and 6,642.96

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Solution

The fourth proportional to 18,329.76, 27,494.63 and 6,642.96 is: 9,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.76 : 27,494.63 = 6,642.96 : x
  2. Step 2: Convert to fraction form
    18,329.76/27,494.63 = 6,642.96/x
  3. Step 3: Cross multiply
    18,329.76x = 27,494.63 × 6,642.96
  4. Step 4: Simplify right side
    18,329.76x = 182,645,727.30
  5. Step 5: Solve for x
    x = 182,645,727.30/18,329.76
  6. Step 6: Final answer
    x = 9,964.44

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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.