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Finding the Fourth Proportional to 6,603,517.60, 9,261,720.80 and 6,603,517.60

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Solution

The fourth proportional to 6,603,517.60, 9,261,720.80 and 6,603,517.60 is: 9,261,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603,517.60 : 9,261,720.80 = 6,603,517.60 : x
  2. Step 2: Convert to fraction form
    6,603,517.60/9,261,720.80 = 6,603,517.60/x
  3. Step 3: Cross multiply
    6,603,517.60x = 9,261,720.80 × 6,603,517.60
  4. Step 4: Simplify right side
    6,603,517.60x = 61,159,936,309,086.08
  5. Step 5: Solve for x
    x = 61,159,936,309,086.08/6,603,517.60
  6. Step 6: Final answer
    x = 9,261,720.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.