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Finding the Fourth Proportional to 8,694.39, 11,984.99 and 5,330.96

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Solution

The fourth proportional to 8,694.39, 11,984.99 and 5,330.96 is: 7,348.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.39 : 11,984.99 = 5,330.96 : x
  2. Step 2: Convert to fraction form
    8,694.39/11,984.99 = 5,330.96/x
  3. Step 3: Cross multiply
    8,694.39x = 11,984.99 × 5,330.96
  4. Step 4: Simplify right side
    8,694.39x = 63,891,543.06
  5. Step 5: Solve for x
    x = 63,891,543.06/8,694.39
  6. Step 6: Final answer
    x = 7,348.60

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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.