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Finding the Fourth Proportional to 16,997.74, 25,502.76 and 8,679.86

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Solution

The fourth proportional to 16,997.74, 25,502.76 and 8,679.86 is: 13,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,997.74 : 25,502.76 = 8,679.86 : x
  2. Step 2: Convert to fraction form
    16,997.74/25,502.76 = 8,679.86/x
  3. Step 3: Cross multiply
    16,997.74x = 25,502.76 × 8,679.86
  4. Step 4: Simplify right side
    16,997.74x = 221,360,386.41
  5. Step 5: Solve for x
    x = 221,360,386.41/16,997.74
  6. Step 6: Final answer
    x = 13,022.93

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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.