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Finding the Fourth Proportional to 8,296,891.90, 12,431,341.05 and 4,027,867.90

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Solution

The fourth proportional to 8,296,891.90, 12,431,341.05 and 4,027,867.90 is: 6,035,006.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,296,891.90 : 12,431,341.05 = 4,027,867.90 : x
  2. Step 2: Convert to fraction form
    8,296,891.90/12,431,341.05 = 4,027,867.90/x
  3. Step 3: Cross multiply
    8,296,891.90x = 12,431,341.05 × 4,027,867.90
  4. Step 4: Simplify right side
    8,296,891.90x = 50,071,799,569,247.30
  5. Step 5: Solve for x
    x = 50,071,799,569,247.30/8,296,891.90
  6. Step 6: Final answer
    x = 6,035,006.86

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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.