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Finding the Fourth Proportional to 5,080.60, 6,996.60 and 4,188.20

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Solution

The fourth proportional to 5,080.60, 6,996.60 and 4,188.20 is: 5,767.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.60 : 6,996.60 = 4,188.20 : x
  2. Step 2: Convert to fraction form
    5,080.60/6,996.60 = 4,188.20/x
  3. Step 3: Cross multiply
    5,080.60x = 6,996.60 × 4,188.20
  4. Step 4: Simplify right side
    5,080.60x = 29,303,160.12
  5. Step 5: Solve for x
    x = 29,303,160.12/5,080.60
  6. Step 6: Final answer
    x = 5,767.66

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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.