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Finding the Fourth Proportional to 7,951,798.40, 11,927,695.77 and 2,272,022.78

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Solution

The fourth proportional to 7,951,798.40, 11,927,695.77 and 2,272,022.78 is: 3,408,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951,798.40 : 11,927,695.77 = 2,272,022.78 : x
  2. Step 2: Convert to fraction form
    7,951,798.40/11,927,695.77 = 2,272,022.78/x
  3. Step 3: Cross multiply
    7,951,798.40x = 11,927,695.77 × 2,272,022.78
  4. Step 4: Simplify right side
    7,951,798.40x = 27,099,996,442,711.16
  5. Step 5: Solve for x
    x = 27,099,996,442,711.16/7,951,798.40
  6. Step 6: Final answer
    x = 3,408,033.64

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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.