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Finding the Fourth Proportional to 16,717.32, 25,079.76 and 8,401.32

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Solution

The fourth proportional to 16,717.32, 25,079.76 and 8,401.32 is: 12,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,717.32 : 25,079.76 = 8,401.32 : x
  2. Step 2: Convert to fraction form
    16,717.32/25,079.76 = 8,401.32/x
  3. Step 3: Cross multiply
    16,717.32x = 25,079.76 × 8,401.32
  4. Step 4: Simplify right side
    16,717.32x = 210,703,089.28
  5. Step 5: Solve for x
    x = 210,703,089.28/16,717.32
  6. Step 6: Final answer
    x = 12,603.88

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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.