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Finding the Fourth Proportional to 6,898,976.74, 9,521,005.91 and 3,801,496.31

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Solution

The fourth proportional to 6,898,976.74, 9,521,005.91 and 3,801,496.31 is: 5,246,295.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898,976.74 : 9,521,005.91 = 3,801,496.31 : x
  2. Step 2: Convert to fraction form
    6,898,976.74/9,521,005.91 = 3,801,496.31/x
  3. Step 3: Cross multiply
    6,898,976.74x = 9,521,005.91 × 3,801,496.31
  4. Step 4: Simplify right side
    6,898,976.74x = 36,194,068,834,353.20
  5. Step 5: Solve for x
    x = 36,194,068,834,353.20/6,898,976.74
  6. Step 6: Final answer
    x = 5,246,295.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.