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Finding the Fourth Proportional to 2,706.75, 3,735.89 and 1,857.16

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Solution

The fourth proportional to 2,706.75, 3,735.89 and 1,857.16 is: 2,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,706.75 : 3,735.89 = 1,857.16 : x
  2. Step 2: Convert to fraction form
    2,706.75/3,735.89 = 1,857.16/x
  3. Step 3: Cross multiply
    2,706.75x = 3,735.89 × 1,857.16
  4. Step 4: Simplify right side
    2,706.75x = 6,938,147.82
  5. Step 5: Solve for x
    x = 6,938,147.82/2,706.75
  6. Step 6: Final answer
    x = 2,563.28

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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.