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Finding the Fourth Proportional to 17,929.63, 26,894.45 and 5,449.76

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Solution

The fourth proportional to 17,929.63, 26,894.45 and 5,449.76 is: 8,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,929.63 : 26,894.45 = 5,449.76 : x
  2. Step 2: Convert to fraction form
    17,929.63/26,894.45 = 5,449.76/x
  3. Step 3: Cross multiply
    17,929.63x = 26,894.45 × 5,449.76
  4. Step 4: Simplify right side
    17,929.63x = 146,568,297.83
  5. Step 5: Solve for x
    x = 146,568,297.83/17,929.63
  6. Step 6: Final answer
    x = 8,174.64

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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.