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Finding the Fourth Proportional to 6,967.80, 9,613.62 and 5,393.16

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Solution

The fourth proportional to 6,967.80, 9,613.62 and 5,393.16 is: 7,441.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,967.80 : 9,613.62 = 5,393.16 : x
  2. Step 2: Convert to fraction form
    6,967.80/9,613.62 = 5,393.16/x
  3. Step 3: Cross multiply
    6,967.80x = 9,613.62 × 5,393.16
  4. Step 4: Simplify right side
    6,967.80x = 51,847,790.84
  5. Step 5: Solve for x
    x = 51,847,790.84/6,967.80
  6. Step 6: Final answer
    x = 7,441.06

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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.