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Finding the Fourth Proportional to 6,656.75, 9,986.69 and 2,274.22

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Solution

The fourth proportional to 6,656.75, 9,986.69 and 2,274.22 is: 3,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.75 : 9,986.69 = 2,274.22 : x
  2. Step 2: Convert to fraction form
    6,656.75/9,986.69 = 2,274.22/x
  3. Step 3: Cross multiply
    6,656.75x = 9,986.69 × 2,274.22
  4. Step 4: Simplify right side
    6,656.75x = 22,711,930.13
  5. Step 5: Solve for x
    x = 22,711,930.13/6,656.75
  6. Step 6: Final answer
    x = 3,411.86

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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.