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Finding the Fourth Proportional to 8,687,581.70, 13,018,542.15 and 6,296,461.70

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Solution

The fourth proportional to 8,687,581.70, 13,018,542.15 and 6,296,461.70 is: 9,435,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687,581.70 : 13,018,542.15 = 6,296,461.70 : x
  2. Step 2: Convert to fraction form
    8,687,581.70/13,018,542.15 = 6,296,461.70/x
  3. Step 3: Cross multiply
    8,687,581.70x = 13,018,542.15 × 6,296,461.70
  4. Step 4: Simplify right side
    8,687,581.70x = 81,970,752,037,310.66
  5. Step 5: Solve for x
    x = 81,970,752,037,310.66/8,687,581.70
  6. Step 6: Final answer
    x = 9,435,393.52

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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.