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Finding the Fourth Proportional to 6,750,391.20, 9,315,564.42 and 3,652,914.25

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Solution

The fourth proportional to 6,750,391.20, 9,315,564.42 and 3,652,914.25 is: 5,041,034.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750,391.20 : 9,315,564.42 = 3,652,914.25 : x
  2. Step 2: Convert to fraction form
    6,750,391.20/9,315,564.42 = 3,652,914.25/x
  3. Step 3: Cross multiply
    6,750,391.20x = 9,315,564.42 × 3,652,914.25
  4. Step 4: Simplify right side
    6,750,391.20x = 34,028,958,016,610.98
  5. Step 5: Solve for x
    x = 34,028,958,016,610.98/6,750,391.20
  6. Step 6: Final answer
    x = 5,041,034.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.