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Finding the Fourth Proportional to 10,641,906.40, 15,962,859.60 and 4,253,144.80

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Solution

The fourth proportional to 10,641,906.40, 15,962,859.60 and 4,253,144.80 is: 6,379,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641,906.40 : 15,962,859.60 = 4,253,144.80 : x
  2. Step 2: Convert to fraction form
    10,641,906.40/15,962,859.60 = 4,253,144.80/x
  3. Step 3: Cross multiply
    10,641,906.40x = 15,962,859.60 × 4,253,144.80
  4. Step 4: Simplify right side
    10,641,906.40x = 67,892,353,300,870.08
  5. Step 5: Solve for x
    x = 67,892,353,300,870.08/10,641,906.40
  6. Step 6: Final answer
    x = 6,379,717.20

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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.