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Finding the Fourth Proportional to 17,917.74, 26,887.14 and 8,064.90

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Solution

The fourth proportional to 17,917.74, 26,887.14 and 8,064.90 is: 12,102.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.74 : 26,887.14 = 8,064.90 : x
  2. Step 2: Convert to fraction form
    17,917.74/26,887.14 = 8,064.90/x
  3. Step 3: Cross multiply
    17,917.74x = 26,887.14 × 8,064.90
  4. Step 4: Simplify right side
    17,917.74x = 216,842,095.39
  5. Step 5: Solve for x
    x = 216,842,095.39/17,917.74
  6. Step 6: Final answer
    x = 12,102.09

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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.