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Finding the Fourth Proportional to 7,908.48, 11,842.56 and 4,976.64

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Solution

The fourth proportional to 7,908.48, 11,842.56 and 4,976.64 is: 7,452.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.48 : 11,842.56 = 4,976.64 : x
  2. Step 2: Convert to fraction form
    7,908.48/11,842.56 = 4,976.64/x
  3. Step 3: Cross multiply
    7,908.48x = 11,842.56 × 4,976.64
  4. Step 4: Simplify right side
    7,908.48x = 58,936,157.80
  5. Step 5: Solve for x
    x = 58,936,157.80/7,908.48
  6. Step 6: Final answer
    x = 7,452.27

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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.