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Finding the Fourth Proportional to 6,968.72, 9,614.22 and 4,135.52

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Solution

The fourth proportional to 6,968.72, 9,614.22 and 4,135.52 is: 5,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,968.72 : 9,614.22 = 4,135.52 : x
  2. Step 2: Convert to fraction form
    6,968.72/9,614.22 = 4,135.52/x
  3. Step 3: Cross multiply
    6,968.72x = 9,614.22 × 4,135.52
  4. Step 4: Simplify right side
    6,968.72x = 39,759,799.09
  5. Step 5: Solve for x
    x = 39,759,799.09/6,968.72
  6. Step 6: Final answer
    x = 5,705.47

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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.