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Finding the Fourth Proportional to 17,663.85, 26,491.08 and 5,180.52

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Solution

The fourth proportional to 17,663.85, 26,491.08 and 5,180.52 is: 7,769.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,663.85 : 26,491.08 = 5,180.52 : x
  2. Step 2: Convert to fraction form
    17,663.85/26,491.08 = 5,180.52/x
  3. Step 3: Cross multiply
    17,663.85x = 26,491.08 × 5,180.52
  4. Step 4: Simplify right side
    17,663.85x = 137,237,569.76
  5. Step 5: Solve for x
    x = 137,237,569.76/17,663.85
  6. Step 6: Final answer
    x = 7,769.40

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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.