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Finding the Fourth Proportional to 17,863.72, 24,651.79 and 9,905.97

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Solution

The fourth proportional to 17,863.72, 24,651.79 and 9,905.97 is: 13,670.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,863.72 : 24,651.79 = 9,905.97 : x
  2. Step 2: Convert to fraction form
    17,863.72/24,651.79 = 9,905.97/x
  3. Step 3: Cross multiply
    17,863.72x = 24,651.79 × 9,905.97
  4. Step 4: Simplify right side
    17,863.72x = 244,199,892.19
  5. Step 5: Solve for x
    x = 244,199,892.19/17,863.72
  6. Step 6: Final answer
    x = 13,670.16

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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.