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Finding the Fourth Proportional to 4,611.22, 6,918.01 and 1,324.55

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Solution

The fourth proportional to 4,611.22, 6,918.01 and 1,324.55 is: 1,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.22 : 6,918.01 = 1,324.55 : x
  2. Step 2: Convert to fraction form
    4,611.22/6,918.01 = 1,324.55/x
  3. Step 3: Cross multiply
    4,611.22x = 6,918.01 × 1,324.55
  4. Step 4: Simplify right side
    4,611.22x = 9,163,264.13
  5. Step 5: Solve for x
    x = 9,163,264.13/4,611.22
  6. Step 6: Final answer
    x = 1,987.17

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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.