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Finding the Fourth Proportional to 13,404,682.80, 20,107,801.80 and 3,820,762.80

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Solution

The fourth proportional to 13,404,682.80, 20,107,801.80 and 3,820,762.80 is: 5,731,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404,682.80 : 20,107,801.80 = 3,820,762.80 : x
  2. Step 2: Convert to fraction form
    13,404,682.80/20,107,801.80 = 3,820,762.80/x
  3. Step 3: Cross multiply
    13,404,682.80x = 20,107,801.80 × 3,820,762.80
  4. Step 4: Simplify right side
    13,404,682.80x = 76,827,141,107,213.05
  5. Step 5: Solve for x
    x = 76,827,141,107,213.05/13,404,682.80
  6. Step 6: Final answer
    x = 5,731,365.84

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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.