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Finding the Fourth Proportional to 16,479.94, 22,742.17 and 8,926.09

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Solution

The fourth proportional to 16,479.94, 22,742.17 and 8,926.09 is: 12,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,479.94 : 22,742.17 = 8,926.09 : x
  2. Step 2: Convert to fraction form
    16,479.94/22,742.17 = 8,926.09/x
  3. Step 3: Cross multiply
    16,479.94x = 22,742.17 × 8,926.09
  4. Step 4: Simplify right side
    16,479.94x = 202,998,656.22
  5. Step 5: Solve for x
    x = 202,998,656.22/16,479.94
  6. Step 6: Final answer
    x = 12,317.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.