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Finding the Fourth Proportional to 8,160.60, 11,245.50 and 5,796.12

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Solution

The fourth proportional to 8,160.60, 11,245.50 and 5,796.12 is: 7,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.60 : 11,245.50 = 5,796.12 : x
  2. Step 2: Convert to fraction form
    8,160.60/11,245.50 = 5,796.12/x
  3. Step 3: Cross multiply
    8,160.60x = 11,245.50 × 5,796.12
  4. Step 4: Simplify right side
    8,160.60x = 65,180,267.46
  5. Step 5: Solve for x
    x = 65,180,267.46/8,160.60
  6. Step 6: Final answer
    x = 7,987.19

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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.