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Finding the Fourth Proportional to 6,508,786.47, 8,980,268.54 and 3,755,255.91

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Solution

The fourth proportional to 6,508,786.47, 8,980,268.54 and 3,755,255.91 is: 5,181,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,508,786.47 : 8,980,268.54 = 3,755,255.91 : x
  2. Step 2: Convert to fraction form
    6,508,786.47/8,980,268.54 = 3,755,255.91/x
  3. Step 3: Cross multiply
    6,508,786.47x = 8,980,268.54 × 3,755,255.91
  4. Step 4: Simplify right side
    6,508,786.47x = 33,723,206,489,445.79
  5. Step 5: Solve for x
    x = 33,723,206,489,445.79/6,508,786.47
  6. Step 6: Final answer
    x = 5,181,181.88

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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.