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Finding the Fourth Proportional to 8,200.62, 11,316.42 and 4,664.16

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Solution

The fourth proportional to 8,200.62, 11,316.42 and 4,664.16 is: 6,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.62 : 11,316.42 = 4,664.16 : x
  2. Step 2: Convert to fraction form
    8,200.62/11,316.42 = 4,664.16/x
  3. Step 3: Cross multiply
    8,200.62x = 11,316.42 × 4,664.16
  4. Step 4: Simplify right side
    8,200.62x = 52,781,593.51
  5. Step 5: Solve for x
    x = 52,781,593.51/8,200.62
  6. Step 6: Final answer
    x = 6,436.29

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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.