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Finding the Fourth Proportional to 9,346,499.78, 12,905,005.05 and 6,040,751.09

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Solution

The fourth proportional to 9,346,499.78, 12,905,005.05 and 6,040,751.09 is: 8,340,654.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,346,499.78 : 12,905,005.05 = 6,040,751.09 : x
  2. Step 2: Convert to fraction form
    9,346,499.78/12,905,005.05 = 6,040,751.09/x
  3. Step 3: Cross multiply
    9,346,499.78x = 12,905,005.05 × 6,040,751.09
  4. Step 4: Simplify right side
    9,346,499.78x = 77,955,923,257,717.98
  5. Step 5: Solve for x
    x = 77,955,923,257,717.98/9,346,499.78
  6. Step 6: Final answer
    x = 8,340,654.27

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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.