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Finding the Fourth Proportional to 9,777,750.77, 13,494,965.97 and 5,647,039.49

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Solution

The fourth proportional to 9,777,750.77, 13,494,965.97 and 5,647,039.49 is: 7,793,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,777,750.77 : 13,494,965.97 = 5,647,039.49 : x
  2. Step 2: Convert to fraction form
    9,777,750.77/13,494,965.97 = 5,647,039.49/x
  3. Step 3: Cross multiply
    9,777,750.77x = 13,494,965.97 × 5,647,039.49
  4. Step 4: Simplify right side
    9,777,750.77x = 76,206,605,696,036.20
  5. Step 5: Solve for x
    x = 76,206,605,696,036.20/9,777,750.77
  6. Step 6: Final answer
    x = 7,793,878.93

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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.