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Finding the Fourth Proportional to 4,786.04, 7,179.40 and 1,276.03

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Solution

The fourth proportional to 4,786.04, 7,179.40 and 1,276.03 is: 1,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.04 : 7,179.40 = 1,276.03 : x
  2. Step 2: Convert to fraction form
    4,786.04/7,179.40 = 1,276.03/x
  3. Step 3: Cross multiply
    4,786.04x = 7,179.40 × 1,276.03
  4. Step 4: Simplify right side
    4,786.04x = 9,161,113.43
  5. Step 5: Solve for x
    x = 9,161,113.43/4,786.04
  6. Step 6: Final answer
    x = 1,914.13

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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.