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Finding the Fourth Proportional to 6,644.40, 9,966.60 and 3,722.33

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Solution

The fourth proportional to 6,644.40, 9,966.60 and 3,722.33 is: 5,583.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644.40 : 9,966.60 = 3,722.33 : x
  2. Step 2: Convert to fraction form
    6,644.40/9,966.60 = 3,722.33/x
  3. Step 3: Cross multiply
    6,644.40x = 9,966.60 × 3,722.33
  4. Step 4: Simplify right side
    6,644.40x = 37,098,924.35
  5. Step 5: Solve for x
    x = 37,098,924.35/6,644.40
  6. Step 6: Final answer
    x = 5,583.49

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Half scale
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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.