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Finding the Fourth Proportional to 16,718.72, 25,073.74 and 7,936.16

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Solution

The fourth proportional to 16,718.72, 25,073.74 and 7,936.16 is: 11,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,718.72 : 25,073.74 = 7,936.16 : x
  2. Step 2: Convert to fraction form
    16,718.72/25,073.74 = 7,936.16/x
  3. Step 3: Cross multiply
    16,718.72x = 25,073.74 × 7,936.16
  4. Step 4: Simplify right side
    16,718.72x = 198,989,212.44
  5. Step 5: Solve for x
    x = 198,989,212.44/16,718.72
  6. Step 6: Final answer
    x = 11,902.18

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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.