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Finding the Fourth Proportional to 2,376.85, 3,562.75 and 915.37

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Solution

The fourth proportional to 2,376.85, 3,562.75 and 915.37 is: 1,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.85 : 3,562.75 = 915.37 : x
  2. Step 2: Convert to fraction form
    2,376.85/3,562.75 = 915.37/x
  3. Step 3: Cross multiply
    2,376.85x = 3,562.75 × 915.37
  4. Step 4: Simplify right side
    2,376.85x = 3,261,234.47
  5. Step 5: Solve for x
    x = 3,261,234.47/2,376.85
  6. Step 6: Final answer
    x = 1,372.08

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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.