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Finding the Fourth Proportional to 6,807,206.39, 9,393,944.94 and 3,751,420.64

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Solution

The fourth proportional to 6,807,206.39, 9,393,944.94 and 3,751,420.64 is: 5,176,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807,206.39 : 9,393,944.94 = 3,751,420.64 : x
  2. Step 2: Convert to fraction form
    6,807,206.39/9,393,944.94 = 3,751,420.64/x
  3. Step 3: Cross multiply
    6,807,206.39x = 9,393,944.94 × 3,751,420.64
  4. Step 4: Simplify right side
    6,807,206.39x = 35,240,638,891,969.84
  5. Step 5: Solve for x
    x = 35,240,638,891,969.84/6,807,206.39
  6. Step 6: Final answer
    x = 5,176,960.55

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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.