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Finding the Fourth Proportional to 4,906.69, 7,356.69 and 1,619.30

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Solution

The fourth proportional to 4,906.69, 7,356.69 and 1,619.30 is: 2,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.69 : 7,356.69 = 1,619.30 : x
  2. Step 2: Convert to fraction form
    4,906.69/7,356.69 = 1,619.30/x
  3. Step 3: Cross multiply
    4,906.69x = 7,356.69 × 1,619.30
  4. Step 4: Simplify right side
    4,906.69x = 11,912,688.12
  5. Step 5: Solve for x
    x = 11,912,688.12/4,906.69
  6. Step 6: Final answer
    x = 2,427.85

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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.