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Finding the Fourth Proportional to 4,613.19, 6,915.53 and 1,839.20

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Solution

The fourth proportional to 4,613.19, 6,915.53 and 1,839.20 is: 2,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.19 : 6,915.53 = 1,839.20 : x
  2. Step 2: Convert to fraction form
    4,613.19/6,915.53 = 1,839.20/x
  3. Step 3: Cross multiply
    4,613.19x = 6,915.53 × 1,839.20
  4. Step 4: Simplify right side
    4,613.19x = 12,718,999.00
  5. Step 5: Solve for x
    x = 12,718,999.00/4,613.19
  6. Step 6: Final answer
    x = 2,757.09

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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.