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Finding the Fourth Proportional to 8,773.21, 12,099.00 and 6,859.28

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Solution

The fourth proportional to 8,773.21, 12,099.00 and 6,859.28 is: 9,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.21 : 12,099.00 = 6,859.28 : x
  2. Step 2: Convert to fraction form
    8,773.21/12,099.00 = 6,859.28/x
  3. Step 3: Cross multiply
    8,773.21x = 12,099.00 × 6,859.28
  4. Step 4: Simplify right side
    8,773.21x = 82,990,484.69
  5. Step 5: Solve for x
    x = 82,990,484.69/8,773.21
  6. Step 6: Final answer
    x = 9,459.53

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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.