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Finding the Fourth Proportional to 6,997.42, 9,654.69 and 5,668.63

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Solution

The fourth proportional to 6,997.42, 9,654.69 and 5,668.63 is: 7,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,997.42 : 9,654.69 = 5,668.63 : x
  2. Step 2: Convert to fraction form
    6,997.42/9,654.69 = 5,668.63/x
  3. Step 3: Cross multiply
    6,997.42x = 9,654.69 × 5,668.63
  4. Step 4: Simplify right side
    6,997.42x = 54,728,865.37
  5. Step 5: Solve for x
    x = 54,728,865.37/6,997.42
  6. Step 6: Final answer
    x = 7,821.29

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Half scale
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Double scale
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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.