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Finding the Fourth Proportional to 22,361.12, 33,541.64 and 5,721.16

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Solution

The fourth proportional to 22,361.12, 33,541.64 and 5,721.16 is: 8,581.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.12 : 33,541.64 = 5,721.16 : x
  2. Step 2: Convert to fraction form
    22,361.12/33,541.64 = 5,721.16/x
  3. Step 3: Cross multiply
    22,361.12x = 33,541.64 × 5,721.16
  4. Step 4: Simplify right side
    22,361.12x = 191,897,089.10
  5. Step 5: Solve for x
    x = 191,897,089.10/22,361.12
  6. Step 6: Final answer
    x = 8,581.73

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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.