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Finding the Fourth Proportional to 7,261,662.80, 10,892,494.20 and 2,212,965.20

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Solution

The fourth proportional to 7,261,662.80, 10,892,494.20 and 2,212,965.20 is: 3,319,447.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261,662.80 : 10,892,494.20 = 2,212,965.20 : x
  2. Step 2: Convert to fraction form
    7,261,662.80/10,892,494.20 = 2,212,965.20/x
  3. Step 3: Cross multiply
    7,261,662.80x = 10,892,494.20 × 2,212,965.20
  4. Step 4: Simplify right side
    7,261,662.80x = 24,104,710,605,801.84
  5. Step 5: Solve for x
    x = 24,104,710,605,801.84/7,261,662.80
  6. Step 6: Final answer
    x = 3,319,447.80

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Double scale
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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.