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Finding the Fourth Proportional to 6,651,608.30, 9,977,412.45 and 5,057,285.30

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Solution

The fourth proportional to 6,651,608.30, 9,977,412.45 and 5,057,285.30 is: 7,585,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651,608.30 : 9,977,412.45 = 5,057,285.30 : x
  2. Step 2: Convert to fraction form
    6,651,608.30/9,977,412.45 = 5,057,285.30/x
  3. Step 3: Cross multiply
    6,651,608.30x = 9,977,412.45 × 5,057,285.30
  4. Step 4: Simplify right side
    6,651,608.30x = 50,458,621,315,421.98
  5. Step 5: Solve for x
    x = 50,458,621,315,421.98/6,651,608.30
  6. Step 6: Final answer
    x = 7,585,927.95

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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.