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Finding the Fourth Proportional to 16,919.71, 23,347.44 and 9,364.99

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Solution

The fourth proportional to 16,919.71, 23,347.44 and 9,364.99 is: 12,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.71 : 23,347.44 = 9,364.99 : x
  2. Step 2: Convert to fraction form
    16,919.71/23,347.44 = 9,364.99/x
  3. Step 3: Cross multiply
    16,919.71x = 23,347.44 × 9,364.99
  4. Step 4: Simplify right side
    16,919.71x = 218,648,593.20
  5. Step 5: Solve for x
    x = 218,648,593.20/16,919.71
  6. Step 6: Final answer
    x = 12,922.71

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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.