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Finding the Fourth Proportional to 7,633,865.60, 11,450,791.20 and 1,954,080.80

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Solution

The fourth proportional to 7,633,865.60, 11,450,791.20 and 1,954,080.80 is: 2,931,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,633,865.60 : 11,450,791.20 = 1,954,080.80 : x
  2. Step 2: Convert to fraction form
    7,633,865.60/11,450,791.20 = 1,954,080.80/x
  3. Step 3: Cross multiply
    7,633,865.60x = 11,450,791.20 × 1,954,080.80
  4. Step 4: Simplify right side
    7,633,865.60x = 22,375,771,228,728.96
  5. Step 5: Solve for x
    x = 22,375,771,228,728.96/7,633,865.60
  6. Step 6: Final answer
    x = 2,931,119.36

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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.