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Finding the Fourth Proportional to 6,668,843.79, 9,203,002.63 and 3,613,058.04

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Solution

The fourth proportional to 6,668,843.79, 9,203,002.63 and 3,613,058.04 is: 4,986,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668,843.79 : 9,203,002.63 = 3,613,058.04 : x
  2. Step 2: Convert to fraction form
    6,668,843.79/9,203,002.63 = 3,613,058.04/x
  3. Step 3: Cross multiply
    6,668,843.79x = 9,203,002.63 × 3,613,058.04
  4. Step 4: Simplify right side
    6,668,843.79x = 33,250,982,644,462.65
  5. Step 5: Solve for x
    x = 33,250,982,644,462.65/6,668,843.79
  6. Step 6: Final answer
    x = 4,986,019.12

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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.