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Finding the Fourth Proportional to 17,615.72, 26,411.78 and 9,286.94

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Solution

The fourth proportional to 17,615.72, 26,411.78 and 9,286.94 is: 13,924.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.72 : 26,411.78 = 9,286.94 : x
  2. Step 2: Convert to fraction form
    17,615.72/26,411.78 = 9,286.94/x
  3. Step 3: Cross multiply
    17,615.72x = 26,411.78 × 9,286.94
  4. Step 4: Simplify right side
    17,615.72x = 245,284,616.15
  5. Step 5: Solve for x
    x = 245,284,616.15/17,615.72
  6. Step 6: Final answer
    x = 13,924.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.