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Finding the Fourth Proportional to 8,308,693.20, 12,452,542.20 and 4,039,669.20

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Solution

The fourth proportional to 8,308,693.20, 12,452,542.20 and 4,039,669.20 is: 6,054,399.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,308,693.20 : 12,452,542.20 = 4,039,669.20 : x
  2. Step 2: Convert to fraction form
    8,308,693.20/12,452,542.20 = 4,039,669.20/x
  3. Step 3: Cross multiply
    8,308,693.20x = 12,452,542.20 × 4,039,669.20
  4. Step 4: Simplify right side
    8,308,693.20x = 50,304,151,187,040.24
  5. Step 5: Solve for x
    x = 50,304,151,187,040.24/8,308,693.20
  6. Step 6: Final answer
    x = 6,054,399.89

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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.