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Finding the Fourth Proportional to 6,751,978.73, 9,317,729.97 and 3,654,501.57

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Solution

The fourth proportional to 6,751,978.73, 9,317,729.97 and 3,654,501.57 is: 5,043,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751,978.73 : 9,317,729.97 = 3,654,501.57 : x
  2. Step 2: Convert to fraction form
    6,751,978.73/9,317,729.97 = 3,654,501.57/x
  3. Step 3: Cross multiply
    6,751,978.73x = 9,317,729.97 × 3,654,501.57
  4. Step 4: Simplify right side
    6,751,978.73x = 34,051,658,804,201.05
  5. Step 5: Solve for x
    x = 34,051,658,804,201.05/6,751,978.73
  6. Step 6: Final answer
    x = 5,043,211.80

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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.