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Finding the Fourth Proportional to 17,720.67, 26,577.37 and 8,356.67

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Solution

The fourth proportional to 17,720.67, 26,577.37 and 8,356.67 is: 12,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.67 : 26,577.37 = 8,356.67 : x
  2. Step 2: Convert to fraction form
    17,720.67/26,577.37 = 8,356.67/x
  3. Step 3: Cross multiply
    17,720.67x = 26,577.37 × 8,356.67
  4. Step 4: Simplify right side
    17,720.67x = 222,098,240.78
  5. Step 5: Solve for x
    x = 222,098,240.78/17,720.67
  6. Step 6: Final answer
    x = 12,533.28

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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.