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Finding the Fourth Proportional to 7,194.96, 9,921.60 and 5,066.64

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Solution

The fourth proportional to 7,194.96, 9,921.60 and 5,066.64 is: 6,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.96 : 9,921.60 = 5,066.64 : x
  2. Step 2: Convert to fraction form
    7,194.96/9,921.60 = 5,066.64/x
  3. Step 3: Cross multiply
    7,194.96x = 9,921.60 × 5,066.64
  4. Step 4: Simplify right side
    7,194.96x = 50,269,175.42
  5. Step 5: Solve for x
    x = 50,269,175.42/7,194.96
  6. Step 6: Final answer
    x = 6,986.72

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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.