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Finding the Fourth Proportional to 4,679.89, 7,020.96 and 1,559.93

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Solution

The fourth proportional to 4,679.89, 7,020.96 and 1,559.93 is: 2,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.89 : 7,020.96 = 1,559.93 : x
  2. Step 2: Convert to fraction form
    4,679.89/7,020.96 = 1,559.93/x
  3. Step 3: Cross multiply
    4,679.89x = 7,020.96 × 1,559.93
  4. Step 4: Simplify right side
    4,679.89x = 10,952,165.18
  5. Step 5: Solve for x
    x = 10,952,165.18/4,679.89
  6. Step 6: Final answer
    x = 2,340.26

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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.