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Finding the Fourth Proportional to 15,236.67, 21,028.55 and 8,522.67

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Solution

The fourth proportional to 15,236.67, 21,028.55 and 8,522.67 is: 11,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.67 : 21,028.55 = 8,522.67 : x
  2. Step 2: Convert to fraction form
    15,236.67/21,028.55 = 8,522.67/x
  3. Step 3: Cross multiply
    15,236.67x = 21,028.55 × 8,522.67
  4. Step 4: Simplify right side
    15,236.67x = 179,219,392.23
  5. Step 5: Solve for x
    x = 179,219,392.23/15,236.67
  6. Step 6: Final answer
    x = 11,762.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.