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Finding the Fourth Proportional to 6,231,105.60, 8,747,140.80 and 6,231,105.60

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Solution

The fourth proportional to 6,231,105.60, 8,747,140.80 and 6,231,105.60 is: 8,747,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,231,105.60 : 8,747,140.80 = 6,231,105.60 : x
  2. Step 2: Convert to fraction form
    6,231,105.60/8,747,140.80 = 6,231,105.60/x
  3. Step 3: Cross multiply
    6,231,105.60x = 8,747,140.80 × 6,231,105.60
  4. Step 4: Simplify right side
    6,231,105.60x = 54,504,358,022,868.48
  5. Step 5: Solve for x
    x = 54,504,358,022,868.48/6,231,105.60
  6. Step 6: Final answer
    x = 8,747,140.80

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Double scale
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1.5x scale

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.