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Finding the Fourth Proportional to 6,866.72, 9,476.04 and 3,722.90

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Solution

The fourth proportional to 6,866.72, 9,476.04 and 3,722.90 is: 5,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.72 : 9,476.04 = 3,722.90 : x
  2. Step 2: Convert to fraction form
    6,866.72/9,476.04 = 3,722.90/x
  3. Step 3: Cross multiply
    6,866.72x = 9,476.04 × 3,722.90
  4. Step 4: Simplify right side
    6,866.72x = 35,278,349.32
  5. Step 5: Solve for x
    x = 35,278,349.32/6,866.72
  6. Step 6: Final answer
    x = 5,137.58

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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.