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Finding the Fourth Proportional to 9,937.70, 14,906.55 and 4,091.30

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Solution

The fourth proportional to 9,937.70, 14,906.55 and 4,091.30 is: 6,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,937.70 : 14,906.55 = 4,091.30 : x
  2. Step 2: Convert to fraction form
    9,937.70/14,906.55 = 4,091.30/x
  3. Step 3: Cross multiply
    9,937.70x = 14,906.55 × 4,091.30
  4. Step 4: Simplify right side
    9,937.70x = 60,987,168.02
  5. Step 5: Solve for x
    x = 60,987,168.02/9,937.70
  6. Step 6: Final answer
    x = 6,136.95

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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.