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Finding the Fourth Proportional to 16,661.90, 22,991.18 and 10,701.65

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Solution

The fourth proportional to 16,661.90, 22,991.18 and 10,701.65 is: 14,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.90 : 22,991.18 = 10,701.65 : x
  2. Step 2: Convert to fraction form
    16,661.90/22,991.18 = 10,701.65/x
  3. Step 3: Cross multiply
    16,661.90x = 22,991.18 × 10,701.65
  4. Step 4: Simplify right side
    16,661.90x = 246,043,565.42
  5. Step 5: Solve for x
    x = 246,043,565.42/16,661.90
  6. Step 6: Final answer
    x = 14,766.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.