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Finding the Fourth Proportional to 17,673.78, 26,509.83 and 5,193.30

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Solution

The fourth proportional to 17,673.78, 26,509.83 and 5,193.30 is: 7,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,673.78 : 26,509.83 = 5,193.30 : x
  2. Step 2: Convert to fraction form
    17,673.78/26,509.83 = 5,193.30/x
  3. Step 3: Cross multiply
    17,673.78x = 26,509.83 × 5,193.30
  4. Step 4: Simplify right side
    17,673.78x = 137,673,500.14
  5. Step 5: Solve for x
    x = 137,673,500.14/17,673.78
  6. Step 6: Final answer
    x = 7,789.70

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1.5x scale

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.