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Finding the Fourth Proportional to 16,700.64, 25,016.94 and 7,908.90

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Solution

The fourth proportional to 16,700.64, 25,016.94 and 7,908.90 is: 11,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,700.64 : 25,016.94 = 7,908.90 : x
  2. Step 2: Convert to fraction form
    16,700.64/25,016.94 = 7,908.90/x
  3. Step 3: Cross multiply
    16,700.64x = 25,016.94 × 7,908.90
  4. Step 4: Simplify right side
    16,700.64x = 197,856,476.77
  5. Step 5: Solve for x
    x = 197,856,476.77/16,700.64
  6. Step 6: Final answer
    x = 11,847.24

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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.