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Finding the Fourth Proportional to 5,387,318.80, 8,084,914.80 and 3,792,995.80

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Solution

The fourth proportional to 5,387,318.80, 8,084,914.80 and 3,792,995.80 is: 5,692,265.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,318.80 : 8,084,914.80 = 3,792,995.80 : x
  2. Step 2: Convert to fraction form
    5,387,318.80/8,084,914.80 = 3,792,995.80/x
  3. Step 3: Cross multiply
    5,387,318.80x = 8,084,914.80 × 3,792,995.80
  4. Step 4: Simplify right side
    5,387,318.80x = 30,666,047,879,757.84
  5. Step 5: Solve for x
    x = 30,666,047,879,757.84/5,387,318.80
  6. Step 6: Final answer
    x = 5,692,265.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.