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Finding the Fourth Proportional to 6,297.89, 9,447.17 and 1,915.01

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Solution

The fourth proportional to 6,297.89, 9,447.17 and 1,915.01 is: 2,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,297.89 : 9,447.17 = 1,915.01 : x
  2. Step 2: Convert to fraction form
    6,297.89/9,447.17 = 1,915.01/x
  3. Step 3: Cross multiply
    6,297.89x = 9,447.17 × 1,915.01
  4. Step 4: Simplify right side
    6,297.89x = 18,091,425.02
  5. Step 5: Solve for x
    x = 18,091,425.02/6,297.89
  6. Step 6: Final answer
    x = 2,872.62

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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.