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Finding the Fourth Proportional to 8,361,930.70, 12,542,896.05 and 6,472,362.70

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Solution

The fourth proportional to 8,361,930.70, 12,542,896.05 and 6,472,362.70 is: 9,708,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,361,930.70 : 12,542,896.05 = 6,472,362.70 : x
  2. Step 2: Convert to fraction form
    8,361,930.70/12,542,896.05 = 6,472,362.70/x
  3. Step 3: Cross multiply
    8,361,930.70x = 12,542,896.05 × 6,472,362.70
  4. Step 4: Simplify right side
    8,361,930.70x = 81,182,172,543,997.34
  5. Step 5: Solve for x
    x = 81,182,172,543,997.34/8,361,930.70
  6. Step 6: Final answer
    x = 9,708,544.05

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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.