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Finding the Fourth Proportional to 22,420.99, 33,620.75 and 13,063.67

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Solution

The fourth proportional to 22,420.99, 33,620.75 and 13,063.67 is: 19,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.99 : 33,620.75 = 13,063.67 : x
  2. Step 2: Convert to fraction form
    22,420.99/33,620.75 = 13,063.67/x
  3. Step 3: Cross multiply
    22,420.99x = 33,620.75 × 13,063.67
  4. Step 4: Simplify right side
    22,420.99x = 439,210,383.15
  5. Step 5: Solve for x
    x = 439,210,383.15/22,420.99
  6. Step 6: Final answer
    x = 19,589.25

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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.