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Finding the Fourth Proportional to 5,828.70, 8,743.14 and 1,668.71

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Solution

The fourth proportional to 5,828.70, 8,743.14 and 1,668.71 is: 2,503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,828.70 : 8,743.14 = 1,668.71 : x
  2. Step 2: Convert to fraction form
    5,828.70/8,743.14 = 1,668.71/x
  3. Step 3: Cross multiply
    5,828.70x = 8,743.14 × 1,668.71
  4. Step 4: Simplify right side
    5,828.70x = 14,589,756.81
  5. Step 5: Solve for x
    x = 14,589,756.81/5,828.70
  6. Step 6: Final answer
    x = 2,503.09

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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.