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Finding the Fourth Proportional to 7,892.68, 11,841.34 and 6,663.08

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Solution

The fourth proportional to 7,892.68, 11,841.34 and 6,663.08 is: 9,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.68 : 11,841.34 = 6,663.08 : x
  2. Step 2: Convert to fraction form
    7,892.68/11,841.34 = 6,663.08/x
  3. Step 3: Cross multiply
    7,892.68x = 11,841.34 × 6,663.08
  4. Step 4: Simplify right side
    7,892.68x = 78,899,795.73
  5. Step 5: Solve for x
    x = 78,899,795.73/7,892.68
  6. Step 6: Final answer
    x = 9,996.58

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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.