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Finding the Fourth Proportional to 22,361.84, 30,826.82 and 15,626.56

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Solution

The fourth proportional to 22,361.84, 30,826.82 and 15,626.56 is: 21,541.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.84 : 30,826.82 = 15,626.56 : x
  2. Step 2: Convert to fraction form
    22,361.84/30,826.82 = 15,626.56/x
  3. Step 3: Cross multiply
    22,361.84x = 30,826.82 × 15,626.56
  4. Step 4: Simplify right side
    22,361.84x = 481,717,152.34
  5. Step 5: Solve for x
    x = 481,717,152.34/22,361.84
  6. Step 6: Final answer
    x = 21,541.93

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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.