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Finding the Fourth Proportional to 5,668.76, 8,504.70 and 1,720.15

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Solution

The fourth proportional to 5,668.76, 8,504.70 and 1,720.15 is: 2,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,668.76 : 8,504.70 = 1,720.15 : x
  2. Step 2: Convert to fraction form
    5,668.76/8,504.70 = 1,720.15/x
  3. Step 3: Cross multiply
    5,668.76x = 8,504.70 × 1,720.15
  4. Step 4: Simplify right side
    5,668.76x = 14,629,338.44
  5. Step 5: Solve for x
    x = 14,629,338.44/5,668.76
  6. Step 6: Final answer
    x = 2,580.69

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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.