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Finding the Fourth Proportional to 4,786.87, 7,181.76 and 2,448.51

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Solution

The fourth proportional to 4,786.87, 7,181.76 and 2,448.51 is: 3,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.87 : 7,181.76 = 2,448.51 : x
  2. Step 2: Convert to fraction form
    4,786.87/7,181.76 = 2,448.51/x
  3. Step 3: Cross multiply
    4,786.87x = 7,181.76 × 2,448.51
  4. Step 4: Simplify right side
    4,786.87x = 17,584,611.18
  5. Step 5: Solve for x
    x = 17,584,611.18/4,786.87
  6. Step 6: Final answer
    x = 3,673.51

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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.