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Finding the Fourth Proportional to 6,651,608.80, 9,977,413.20 and 5,057,285.80

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Solution

The fourth proportional to 6,651,608.80, 9,977,413.20 and 5,057,285.80 is: 7,585,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651,608.80 : 9,977,413.20 = 5,057,285.80 : x
  2. Step 2: Convert to fraction form
    6,651,608.80/9,977,413.20 = 5,057,285.80/x
  3. Step 3: Cross multiply
    6,651,608.80x = 9,977,413.20 × 5,057,285.80
  4. Step 4: Simplify right side
    6,651,608.80x = 50,458,630,097,092.55
  5. Step 5: Solve for x
    x = 50,458,630,097,092.55/6,651,608.80
  6. Step 6: Final answer
    x = 7,585,928.70

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Double scale
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Similar ratio
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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.