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Finding the Fourth Proportional to 11,956.52, 17,934.78 and 5,715.07

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Solution

The fourth proportional to 11,956.52, 17,934.78 and 5,715.07 is: 8,572.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.52 : 17,934.78 = 5,715.07 : x
  2. Step 2: Convert to fraction form
    11,956.52/17,934.78 = 5,715.07/x
  3. Step 3: Cross multiply
    11,956.52x = 17,934.78 × 5,715.07
  4. Step 4: Simplify right side
    11,956.52x = 102,498,478.30
  5. Step 5: Solve for x
    x = 102,498,478.30/11,956.52
  6. Step 6: Final answer
    x = 8,572.60

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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.