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Finding the Fourth Proportional to 7,108.80, 10,663.20 and 5,796.60

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Solution

The fourth proportional to 7,108.80, 10,663.20 and 5,796.60 is: 8,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.80 : 10,663.20 = 5,796.60 : x
  2. Step 2: Convert to fraction form
    7,108.80/10,663.20 = 5,796.60/x
  3. Step 3: Cross multiply
    7,108.80x = 10,663.20 × 5,796.60
  4. Step 4: Simplify right side
    7,108.80x = 61,810,305.12
  5. Step 5: Solve for x
    x = 61,810,305.12/7,108.80
  6. Step 6: Final answer
    x = 8,694.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.