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Finding the Fourth Proportional to 2,376.53, 3,563.32 and 915.34

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Solution

The fourth proportional to 2,376.53, 3,563.32 and 915.34 is: 1,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.53 : 3,563.32 = 915.34 : x
  2. Step 2: Convert to fraction form
    2,376.53/3,563.32 = 915.34/x
  3. Step 3: Cross multiply
    2,376.53x = 3,563.32 × 915.34
  4. Step 4: Simplify right side
    2,376.53x = 3,261,644.75
  5. Step 5: Solve for x
    x = 3,261,644.75/2,376.53
  6. Step 6: Final answer
    x = 1,372.44

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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.