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Finding the Fourth Proportional to 2,762.65, 4,136.19 and 2,072.53

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Solution

The fourth proportional to 2,762.65, 4,136.19 and 2,072.53 is: 3,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.65 : 4,136.19 = 2,072.53 : x
  2. Step 2: Convert to fraction form
    2,762.65/4,136.19 = 2,072.53/x
  3. Step 3: Cross multiply
    2,762.65x = 4,136.19 × 2,072.53
  4. Step 4: Simplify right side
    2,762.65x = 8,572,377.86
  5. Step 5: Solve for x
    x = 8,572,377.86/2,762.65
  6. Step 6: Final answer
    x = 3,102.95

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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.