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Finding the Fourth Proportional to 17,113.35, 25,669.67 and 7,879.35

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Solution

The fourth proportional to 17,113.35, 25,669.67 and 7,879.35 is: 11,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,113.35 : 25,669.67 = 7,879.35 : x
  2. Step 2: Convert to fraction form
    17,113.35/25,669.67 = 7,879.35/x
  3. Step 3: Cross multiply
    17,113.35x = 25,669.67 × 7,879.35
  4. Step 4: Simplify right side
    17,113.35x = 202,260,274.92
  5. Step 5: Solve for x
    x = 202,260,274.92/17,113.35
  6. Step 6: Final answer
    x = 11,818.86

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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.