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Finding the Fourth Proportional to 17,812.72, 26,701.72 and 7,427.44

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Solution

The fourth proportional to 17,812.72, 26,701.72 and 7,427.44 is: 11,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812.72 : 26,701.72 = 7,427.44 : x
  2. Step 2: Convert to fraction form
    17,812.72/26,701.72 = 7,427.44/x
  3. Step 3: Cross multiply
    17,812.72x = 26,701.72 × 7,427.44
  4. Step 4: Simplify right side
    17,812.72x = 198,325,423.20
  5. Step 5: Solve for x
    x = 198,325,423.20/17,812.72
  6. Step 6: Final answer
    x = 11,133.92

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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.