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Finding the Fourth Proportional to 17,372.79, 23,974.65 and 9,415.08

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Solution

The fourth proportional to 17,372.79, 23,974.65 and 9,415.08 is: 12,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,372.79 : 23,974.65 = 9,415.08 : x
  2. Step 2: Convert to fraction form
    17,372.79/23,974.65 = 9,415.08/x
  3. Step 3: Cross multiply
    17,372.79x = 23,974.65 × 9,415.08
  4. Step 4: Simplify right side
    17,372.79x = 225,723,247.72
  5. Step 5: Solve for x
    x = 225,723,247.72/17,372.79
  6. Step 6: Final answer
    x = 12,992.92

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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.