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Finding the Fourth Proportional to 8,808.06, 12,082.75 and 8,331.41

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Solution

The fourth proportional to 8,808.06, 12,082.75 and 8,331.41 is: 11,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.06 : 12,082.75 = 8,331.41 : x
  2. Step 2: Convert to fraction form
    8,808.06/12,082.75 = 8,331.41/x
  3. Step 3: Cross multiply
    8,808.06x = 12,082.75 × 8,331.41
  4. Step 4: Simplify right side
    8,808.06x = 100,666,344.18
  5. Step 5: Solve for x
    x = 100,666,344.18/8,808.06
  6. Step 6: Final answer
    x = 11,428.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.