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Finding the Fourth Proportional to 17,187.71, 23,719.43 and 9,633.69

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Solution

The fourth proportional to 17,187.71, 23,719.43 and 9,633.69 is: 13,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.71 : 23,719.43 = 9,633.69 : x
  2. Step 2: Convert to fraction form
    17,187.71/23,719.43 = 9,633.69/x
  3. Step 3: Cross multiply
    17,187.71x = 23,719.43 × 9,633.69
  4. Step 4: Simplify right side
    17,187.71x = 228,505,659.68
  5. Step 5: Solve for x
    x = 228,505,659.68/17,187.71
  6. Step 6: Final answer
    x = 13,294.72

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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.