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Finding the Fourth Proportional to 6,967,895.82, 9,615,696.23 and 3,912,175.68

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Solution

The fourth proportional to 6,967,895.82, 9,615,696.23 and 3,912,175.68 is: 5,398,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,967,895.82 : 9,615,696.23 = 3,912,175.68 : x
  2. Step 2: Convert to fraction form
    6,967,895.82/9,615,696.23 = 3,912,175.68/x
  3. Step 3: Cross multiply
    6,967,895.82x = 9,615,696.23 × 3,912,175.68
  4. Step 4: Simplify right side
    6,967,895.82x = 37,618,292,917,712.80
  5. Step 5: Solve for x
    x = 37,618,292,917,712.80/6,967,895.82
  6. Step 6: Final answer
    x = 5,398,802.43

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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.