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Finding the Fourth Proportional to 9,794,136.80, 14,691,205.20 and 5,812,824.80

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Solution

The fourth proportional to 9,794,136.80, 14,691,205.20 and 5,812,824.80 is: 8,719,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,794,136.80 : 14,691,205.20 = 5,812,824.80 : x
  2. Step 2: Convert to fraction form
    9,794,136.80/14,691,205.20 = 5,812,824.80/x
  3. Step 3: Cross multiply
    9,794,136.80x = 14,691,205.20 × 5,812,824.80
  4. Step 4: Simplify right side
    9,794,136.80x = 85,397,401,928,448.95
  5. Step 5: Solve for x
    x = 85,397,401,928,448.95/9,794,136.80
  6. Step 6: Final answer
    x = 8,719,237.20

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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.