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Finding the Fourth Proportional to 16,872.16, 25,317.38 and 7,018.24

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Solution

The fourth proportional to 16,872.16, 25,317.38 and 7,018.24 is: 10,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.16 : 25,317.38 = 7,018.24 : x
  2. Step 2: Convert to fraction form
    16,872.16/25,317.38 = 7,018.24/x
  3. Step 3: Cross multiply
    16,872.16x = 25,317.38 × 7,018.24
  4. Step 4: Simplify right side
    16,872.16x = 177,683,449.01
  5. Step 5: Solve for x
    x = 177,683,449.01/16,872.16
  6. Step 6: Final answer
    x = 10,531.16

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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.