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Finding the Fourth Proportional to 8,291.60, 12,424.44 and 5,794.64

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Solution

The fourth proportional to 8,291.60, 12,424.44 and 5,794.64 is: 8,682.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.60 : 12,424.44 = 5,794.64 : x
  2. Step 2: Convert to fraction form
    8,291.60/12,424.44 = 5,794.64/x
  3. Step 3: Cross multiply
    8,291.60x = 12,424.44 × 5,794.64
  4. Step 4: Simplify right side
    8,291.60x = 71,995,157.00
  5. Step 5: Solve for x
    x = 71,995,157.00/8,291.60
  6. Step 6: Final answer
    x = 8,682.90

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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.