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Finding the Fourth Proportional to 6,663.18, 9,996.48 and 1,983.24

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Solution

The fourth proportional to 6,663.18, 9,996.48 and 1,983.24 is: 2,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.18 : 9,996.48 = 1,983.24 : x
  2. Step 2: Convert to fraction form
    6,663.18/9,996.48 = 1,983.24/x
  3. Step 3: Cross multiply
    6,663.18x = 9,996.48 × 1,983.24
  4. Step 4: Simplify right side
    6,663.18x = 19,825,419.00
  5. Step 5: Solve for x
    x = 19,825,419.00/6,663.18
  6. Step 6: Final answer
    x = 2,975.37

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Double scale
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Similar ratio
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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.