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Finding the Fourth Proportional to 8,084,312.70, 12,126,469.05 and 6,997,811.10

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Solution

The fourth proportional to 8,084,312.70, 12,126,469.05 and 6,997,811.10 is: 10,496,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084,312.70 : 12,126,469.05 = 6,997,811.10 : x
  2. Step 2: Convert to fraction form
    8,084,312.70/12,126,469.05 = 6,997,811.10/x
  3. Step 3: Cross multiply
    8,084,312.70x = 12,126,469.05 × 6,997,811.10
  4. Step 4: Simplify right side
    8,084,312.70x = 84,858,739,721,896.45
  5. Step 5: Solve for x
    x = 84,858,739,721,896.45/8,084,312.70
  6. Step 6: Final answer
    x = 10,496,716.65

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Double scale
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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.