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Finding the Fourth Proportional to 28,668.03, 43,000.67 and 9,691.41

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Solution

The fourth proportional to 28,668.03, 43,000.67 and 9,691.41 is: 14,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,668.03 : 43,000.67 = 9,691.41 : x
  2. Step 2: Convert to fraction form
    28,668.03/43,000.67 = 9,691.41/x
  3. Step 3: Cross multiply
    28,668.03x = 43,000.67 × 9,691.41
  4. Step 4: Simplify right side
    28,668.03x = 416,736,945.91
  5. Step 5: Solve for x
    x = 416,736,945.91/28,668.03
  6. Step 6: Final answer
    x = 14,536.64

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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.