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Finding the Fourth Proportional to 2,486.25, 3,730.05 and 1,757.25

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Solution

The fourth proportional to 2,486.25, 3,730.05 and 1,757.25 is: 2,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.25 : 3,730.05 = 1,757.25 : x
  2. Step 2: Convert to fraction form
    2,486.25/3,730.05 = 1,757.25/x
  3. Step 3: Cross multiply
    2,486.25x = 3,730.05 × 1,757.25
  4. Step 4: Simplify right side
    2,486.25x = 6,554,630.36
  5. Step 5: Solve for x
    x = 6,554,630.36/2,486.25
  6. Step 6: Final answer
    x = 2,636.35

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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.