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Finding the Fourth Proportional to 10,361.96, 15,531.24 and 9,531.44

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Solution

The fourth proportional to 10,361.96, 15,531.24 and 9,531.44 is: 14,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,361.96 : 15,531.24 = 9,531.44 : x
  2. Step 2: Convert to fraction form
    10,361.96/15,531.24 = 9,531.44/x
  3. Step 3: Cross multiply
    10,361.96x = 15,531.24 × 9,531.44
  4. Step 4: Simplify right side
    10,361.96x = 148,035,082.19
  5. Step 5: Solve for x
    x = 148,035,082.19/10,361.96
  6. Step 6: Final answer
    x = 14,286.40

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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.