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Finding the Fourth Proportional to 2,376.28, 3,565.02 and 915.04

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Solution

The fourth proportional to 2,376.28, 3,565.02 and 915.04 is: 1,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.28 : 3,565.02 = 915.04 : x
  2. Step 2: Convert to fraction form
    2,376.28/3,565.02 = 915.04/x
  3. Step 3: Cross multiply
    2,376.28x = 3,565.02 × 915.04
  4. Step 4: Simplify right side
    2,376.28x = 3,262,118.08
  5. Step 5: Solve for x
    x = 3,262,118.08/2,376.28
  6. Step 6: Final answer
    x = 1,372.79

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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.