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Finding the Fourth Proportional to 7,216,694.92, 9,958,620.50 and 3,952,941.48

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Solution

The fourth proportional to 7,216,694.92, 9,958,620.50 and 3,952,941.48 is: 5,454,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216,694.92 : 9,958,620.50 = 3,952,941.48 : x
  2. Step 2: Convert to fraction form
    7,216,694.92/9,958,620.50 = 3,952,941.48/x
  3. Step 3: Cross multiply
    7,216,694.92x = 9,958,620.50 × 3,952,941.48
  4. Step 4: Simplify right side
    7,216,694.92x = 39,365,844,058,028.34
  5. Step 5: Solve for x
    x = 39,365,844,058,028.34/7,216,694.92
  6. Step 6: Final answer
    x = 5,454,830.01

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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.