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Finding the Fourth Proportional to 17,616.10, 26,424.15 and 5,136.10

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Solution

The fourth proportional to 17,616.10, 26,424.15 and 5,136.10 is: 7,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,616.10 : 26,424.15 = 5,136.10 : x
  2. Step 2: Convert to fraction form
    17,616.10/26,424.15 = 5,136.10/x
  3. Step 3: Cross multiply
    17,616.10x = 26,424.15 × 5,136.10
  4. Step 4: Simplify right side
    17,616.10x = 135,717,076.82
  5. Step 5: Solve for x
    x = 135,717,076.82/17,616.10
  6. Step 6: Final answer
    x = 7,704.15

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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.