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Finding the Fourth Proportional to 1,896.80, 2,618.08 and 1,699.96

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Solution

The fourth proportional to 1,896.80, 2,618.08 and 1,699.96 is: 2,346.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.80 : 2,618.08 = 1,699.96 : x
  2. Step 2: Convert to fraction form
    1,896.80/2,618.08 = 1,699.96/x
  3. Step 3: Cross multiply
    1,896.80x = 2,618.08 × 1,699.96
  4. Step 4: Simplify right side
    1,896.80x = 4,450,631.28
  5. Step 5: Solve for x
    x = 4,450,631.28/1,896.80
  6. Step 6: Final answer
    x = 2,346.39

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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.