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Finding the Fourth Proportional to 16,661.18, 24,986.91 and 7,893.74

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Solution

The fourth proportional to 16,661.18, 24,986.91 and 7,893.74 is: 11,838.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.18 : 24,986.91 = 7,893.74 : x
  2. Step 2: Convert to fraction form
    16,661.18/24,986.91 = 7,893.74/x
  3. Step 3: Cross multiply
    16,661.18x = 24,986.91 × 7,893.74
  4. Step 4: Simplify right side
    16,661.18x = 197,240,170.94
  5. Step 5: Solve for x
    x = 197,240,170.94/16,661.18
  6. Step 6: Final answer
    x = 11,838.31

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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.