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Finding the Fourth Proportional to 5,986.56, 8,985.28 and 3,066.88

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Solution

The fourth proportional to 5,986.56, 8,985.28 and 3,066.88 is: 4,603.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.56 : 8,985.28 = 3,066.88 : x
  2. Step 2: Convert to fraction form
    5,986.56/8,985.28 = 3,066.88/x
  3. Step 3: Cross multiply
    5,986.56x = 8,985.28 × 3,066.88
  4. Step 4: Simplify right side
    5,986.56x = 27,556,775.53
  5. Step 5: Solve for x
    x = 27,556,775.53/5,986.56
  6. Step 6: Final answer
    x = 4,603.11

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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.