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Finding the Fourth Proportional to 32,872.59, 45,361.44 and 18,335.87

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Solution

The fourth proportional to 32,872.59, 45,361.44 and 18,335.87 is: 25,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,872.59 : 45,361.44 = 18,335.87 : x
  2. Step 2: Convert to fraction form
    32,872.59/45,361.44 = 18,335.87/x
  3. Step 3: Cross multiply
    32,872.59x = 45,361.44 × 18,335.87
  4. Step 4: Simplify right side
    32,872.59x = 831,741,580.26
  5. Step 5: Solve for x
    x = 831,741,580.26/32,872.59
  6. Step 6: Final answer
    x = 25,301.98

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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.