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Finding the Fourth Proportional to 9,652,865.88, 13,321,879.95 and 5,522,076.66

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Solution

The fourth proportional to 9,652,865.88, 13,321,879.95 and 5,522,076.66 is: 7,620,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,652,865.88 : 13,321,879.95 = 5,522,076.66 : x
  2. Step 2: Convert to fraction form
    9,652,865.88/13,321,879.95 = 5,522,076.66/x
  3. Step 3: Cross multiply
    9,652,865.88x = 13,321,879.95 × 5,522,076.66
  4. Step 4: Simplify right side
    9,652,865.88x = 73,564,442,339,216.97
  5. Step 5: Solve for x
    x = 73,564,442,339,216.97/9,652,865.88
  6. Step 6: Final answer
    x = 7,620,994.97

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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.