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Finding the Fourth Proportional to 7,328,267.80, 10,992,401.70 and 6,241,766.20

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Solution

The fourth proportional to 7,328,267.80, 10,992,401.70 and 6,241,766.20 is: 9,362,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328,267.80 : 10,992,401.70 = 6,241,766.20 : x
  2. Step 2: Convert to fraction form
    7,328,267.80/10,992,401.70 = 6,241,766.20/x
  3. Step 3: Cross multiply
    7,328,267.80x = 10,992,401.70 × 6,241,766.20
  4. Step 4: Simplify right side
    7,328,267.80x = 68,612,001,387,882.54
  5. Step 5: Solve for x
    x = 68,612,001,387,882.54/7,328,267.80
  6. Step 6: Final answer
    x = 9,362,649.30

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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.