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Finding the Fourth Proportional to 8,395,185.89, 12,594,978.02 and 2,637,686.90

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Solution

The fourth proportional to 8,395,185.89, 12,594,978.02 and 2,637,686.90 is: 3,957,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395,185.89 : 12,594,978.02 = 2,637,686.90 : x
  2. Step 2: Convert to fraction form
    8,395,185.89/12,594,978.02 = 2,637,686.90/x
  3. Step 3: Cross multiply
    8,395,185.89x = 12,594,978.02 × 2,637,686.90
  4. Step 4: Simplify right side
    8,395,185.89x = 33,221,608,472,761.27
  5. Step 5: Solve for x
    x = 33,221,608,472,761.27/8,395,185.89
  6. Step 6: Final answer
    x = 3,957,221.31

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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.