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Finding the Fourth Proportional to 8,813.52, 13,207.86 and 6,956.46

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Solution

The fourth proportional to 8,813.52, 13,207.86 and 6,956.46 is: 10,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.52 : 13,207.86 = 6,956.46 : x
  2. Step 2: Convert to fraction form
    8,813.52/13,207.86 = 6,956.46/x
  3. Step 3: Cross multiply
    8,813.52x = 13,207.86 × 6,956.46
  4. Step 4: Simplify right side
    8,813.52x = 91,879,949.78
  5. Step 5: Solve for x
    x = 91,879,949.78/8,813.52
  6. Step 6: Final answer
    x = 10,424.89

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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.