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Finding the Fourth Proportional to 8,691,306.67, 11,996,207.94 and 5,939,108.11

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Solution

The fourth proportional to 8,691,306.67, 11,996,207.94 and 5,939,108.11 is: 8,197,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,306.67 : 11,996,207.94 = 5,939,108.11 : x
  2. Step 2: Convert to fraction form
    8,691,306.67/11,996,207.94 = 5,939,108.11/x
  3. Step 3: Cross multiply
    8,691,306.67x = 11,996,207.94 × 5,939,108.11
  4. Step 4: Simplify right side
    8,691,306.67x = 71,246,775,865,700.39
  5. Step 5: Solve for x
    x = 71,246,775,865,700.39/8,691,306.67
  6. Step 6: Final answer
    x = 8,197,475.77

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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.