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Finding the Fourth Proportional to 3,346.22, 4,619 and 1,948.98

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Solution

The fourth proportional to 3,346.22, 4,619 and 1,948.98 is: 2,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.22 : 4,619 = 1,948.98 : x
  2. Step 2: Convert to fraction form
    3,346.22/4,619 = 1,948.98/x
  3. Step 3: Cross multiply
    3,346.22x = 4,619 × 1,948.98
  4. Step 4: Simplify right side
    3,346.22x = 9,002,338.62
  5. Step 5: Solve for x
    x = 9,002,338.62/3,346.22
  6. Step 6: Final answer
    x = 2,690.30

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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.