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Finding the Fourth Proportional to 8,241.68, 11,373.72 and 4,705.22

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Solution

The fourth proportional to 8,241.68, 11,373.72 and 4,705.22 is: 6,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.68 : 11,373.72 = 4,705.22 : x
  2. Step 2: Convert to fraction form
    8,241.68/11,373.72 = 4,705.22/x
  3. Step 3: Cross multiply
    8,241.68x = 11,373.72 × 4,705.22
  4. Step 4: Simplify right side
    8,241.68x = 53,515,865.61
  5. Step 5: Solve for x
    x = 53,515,865.61/8,241.68
  6. Step 6: Final answer
    x = 6,493.32

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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.