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Finding the Fourth Proportional to 22,381.45, 33,564.99 and 7,385.20

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Solution

The fourth proportional to 22,381.45, 33,564.99 and 7,385.20 is: 11,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,381.45 : 33,564.99 = 7,385.20 : x
  2. Step 2: Convert to fraction form
    22,381.45/33,564.99 = 7,385.20/x
  3. Step 3: Cross multiply
    22,381.45x = 33,564.99 × 7,385.20
  4. Step 4: Simplify right side
    22,381.45x = 247,883,996.32
  5. Step 5: Solve for x
    x = 247,883,996.32/22,381.45
  6. Step 6: Final answer
    x = 11,075.42

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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.