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Finding the Fourth Proportional to 17,728.10, 26,592.15 and 8,512.10

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Solution

The fourth proportional to 17,728.10, 26,592.15 and 8,512.10 is: 12,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,728.10 : 26,592.15 = 8,512.10 : x
  2. Step 2: Convert to fraction form
    17,728.10/26,592.15 = 8,512.10/x
  3. Step 3: Cross multiply
    17,728.10x = 26,592.15 × 8,512.10
  4. Step 4: Simplify right side
    17,728.10x = 226,355,040.02
  5. Step 5: Solve for x
    x = 226,355,040.02/17,728.10
  6. Step 6: Final answer
    x = 12,768.15

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Similar ratio
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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.