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Finding the Fourth Proportional to 17,149.12, 25,683.36 and 8,356.48

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Solution

The fourth proportional to 17,149.12, 25,683.36 and 8,356.48 is: 12,515.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.12 : 25,683.36 = 8,356.48 : x
  2. Step 2: Convert to fraction form
    17,149.12/25,683.36 = 8,356.48/x
  3. Step 3: Cross multiply
    17,149.12x = 25,683.36 × 8,356.48
  4. Step 4: Simplify right side
    17,149.12x = 214,622,484.17
  5. Step 5: Solve for x
    x = 214,622,484.17/17,149.12
  6. Step 6: Final answer
    x = 12,515.07

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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.