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Finding the Fourth Proportional to 6,652,028.40, 9,978,042.60 and 6,589,042.80

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Solution

The fourth proportional to 6,652,028.40, 9,978,042.60 and 6,589,042.80 is: 9,883,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,028.40 : 9,978,042.60 = 6,589,042.80 : x
  2. Step 2: Convert to fraction form
    6,652,028.40/9,978,042.60 = 6,589,042.80/x
  3. Step 3: Cross multiply
    6,652,028.40x = 9,978,042.60 × 6,589,042.80
  4. Step 4: Simplify right side
    6,652,028.40x = 65,745,749,751,623.27
  5. Step 5: Solve for x
    x = 65,745,749,751,623.27/6,652,028.40
  6. Step 6: Final answer
    x = 9,883,564.20

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Similar ratio
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1.5x scale

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.