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Finding the Fourth Proportional to 8,352,912.30, 12,510,706.05 and 6,859,920.30

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Solution

The fourth proportional to 8,352,912.30, 12,510,706.05 and 6,859,920.30 is: 10,274,553.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352,912.30 : 12,510,706.05 = 6,859,920.30 : x
  2. Step 2: Convert to fraction form
    8,352,912.30/12,510,706.05 = 6,859,920.30/x
  3. Step 3: Cross multiply
    8,352,912.30x = 12,510,706.05 × 6,859,920.30
  4. Step 4: Simplify right side
    8,352,912.30x = 85,822,446,399,727.81
  5. Step 5: Solve for x
    x = 85,822,446,399,727.81/8,352,912.30
  6. Step 6: Final answer
    x = 10,274,553.75

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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.