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Finding the Fourth Proportional to 22,000.84, 30,361.29 and 11,929.42

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Solution

The fourth proportional to 22,000.84, 30,361.29 and 11,929.42 is: 16,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000.84 : 30,361.29 = 11,929.42 : x
  2. Step 2: Convert to fraction form
    22,000.84/30,361.29 = 11,929.42/x
  3. Step 3: Cross multiply
    22,000.84x = 30,361.29 × 11,929.42
  4. Step 4: Simplify right side
    22,000.84x = 362,192,580.15
  5. Step 5: Solve for x
    x = 362,192,580.15/22,000.84
  6. Step 6: Final answer
    x = 16,462.67

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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.