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Finding the Fourth Proportional to 8,757.09, 12,070.48 and 6,099.88

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Solution

The fourth proportional to 8,757.09, 12,070.48 and 6,099.88 is: 8,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.09 : 12,070.48 = 6,099.88 : x
  2. Step 2: Convert to fraction form
    8,757.09/12,070.48 = 6,099.88/x
  3. Step 3: Cross multiply
    8,757.09x = 12,070.48 × 6,099.88
  4. Step 4: Simplify right side
    8,757.09x = 73,628,479.54
  5. Step 5: Solve for x
    x = 73,628,479.54/8,757.09
  6. Step 6: Final answer
    x = 8,407.87

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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.