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Finding the Fourth Proportional to 17,911.70, 24,717.97 and 9,953.76

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Solution

The fourth proportional to 17,911.70, 24,717.97 and 9,953.76 is: 13,736.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.70 : 24,717.97 = 9,953.76 : x
  2. Step 2: Convert to fraction form
    17,911.70/24,717.97 = 9,953.76/x
  3. Step 3: Cross multiply
    17,911.70x = 24,717.97 × 9,953.76
  4. Step 4: Simplify right side
    17,911.70x = 246,036,660.82
  5. Step 5: Solve for x
    x = 246,036,660.82/17,911.70
  6. Step 6: Final answer
    x = 13,736.08

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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.