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Finding the Fourth Proportional to 8,448.39, 11,659.65 and 4,863.49

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Solution

The fourth proportional to 8,448.39, 11,659.65 and 4,863.49 is: 6,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.39 : 11,659.65 = 4,863.49 : x
  2. Step 2: Convert to fraction form
    8,448.39/11,659.65 = 4,863.49/x
  3. Step 3: Cross multiply
    8,448.39x = 11,659.65 × 4,863.49
  4. Step 4: Simplify right side
    8,448.39x = 56,706,532.88
  5. Step 5: Solve for x
    x = 56,706,532.88/8,448.39
  6. Step 6: Final answer
    x = 6,712.11

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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.