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Finding the Fourth Proportional to 2,048.09, 3,072.30 and 749.53

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Solution

The fourth proportional to 2,048.09, 3,072.30 and 749.53 is: 1,124.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.09 : 3,072.30 = 749.53 : x
  2. Step 2: Convert to fraction form
    2,048.09/3,072.30 = 749.53/x
  3. Step 3: Cross multiply
    2,048.09x = 3,072.30 × 749.53
  4. Step 4: Simplify right side
    2,048.09x = 2,302,777.27
  5. Step 5: Solve for x
    x = 2,302,777.27/2,048.09
  6. Step 6: Final answer
    x = 1,124.35

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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.