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Finding the Fourth Proportional to 43,361.33, 65,045.03 and 18,398.54

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Solution

The fourth proportional to 43,361.33, 65,045.03 and 18,398.54 is: 27,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,361.33 : 65,045.03 = 18,398.54 : x
  2. Step 2: Convert to fraction form
    43,361.33/65,045.03 = 18,398.54/x
  3. Step 3: Cross multiply
    43,361.33x = 65,045.03 × 18,398.54
  4. Step 4: Simplify right side
    43,361.33x = 1,196,733,656.88
  5. Step 5: Solve for x
    x = 1,196,733,656.88/43,361.33
  6. Step 6: Final answer
    x = 27,599.10

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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.