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Finding the Fourth Proportional to 22,202.84, 30,640.02 and 12,131.12

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Solution

The fourth proportional to 22,202.84, 30,640.02 and 12,131.12 is: 16,741.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.84 : 30,640.02 = 12,131.12 : x
  2. Step 2: Convert to fraction form
    22,202.84/30,640.02 = 12,131.12/x
  3. Step 3: Cross multiply
    22,202.84x = 30,640.02 × 12,131.12
  4. Step 4: Simplify right side
    22,202.84x = 371,697,759.42
  5. Step 5: Solve for x
    x = 371,697,759.42/22,202.84
  6. Step 6: Final answer
    x = 16,741.00

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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.