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Finding the Fourth Proportional to 3,409.65, 4,705.48 and 2,083.14

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Solution

The fourth proportional to 3,409.65, 4,705.48 and 2,083.14 is: 2,874.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.65 : 4,705.48 = 2,083.14 : x
  2. Step 2: Convert to fraction form
    3,409.65/4,705.48 = 2,083.14/x
  3. Step 3: Cross multiply
    3,409.65x = 4,705.48 × 2,083.14
  4. Step 4: Simplify right side
    3,409.65x = 9,802,173.61
  5. Step 5: Solve for x
    x = 9,802,173.61/3,409.65
  6. Step 6: Final answer
    x = 2,874.83

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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.