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Finding the Fourth Proportional to 6,857.62, 9,462.62 and 4,022.88

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Solution

The fourth proportional to 6,857.62, 9,462.62 and 4,022.88 is: 5,551.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,857.62 : 9,462.62 = 4,022.88 : x
  2. Step 2: Convert to fraction form
    6,857.62/9,462.62 = 4,022.88/x
  3. Step 3: Cross multiply
    6,857.62x = 9,462.62 × 4,022.88
  4. Step 4: Simplify right side
    6,857.62x = 38,066,984.75
  5. Step 5: Solve for x
    x = 38,066,984.75/6,857.62
  6. Step 6: Final answer
    x = 5,551.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.