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Finding the Fourth Proportional to 3,264.72, 4,506.54 and 1,939.08

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Solution

The fourth proportional to 3,264.72, 4,506.54 and 1,939.08 is: 2,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,264.72 : 4,506.54 = 1,939.08 : x
  2. Step 2: Convert to fraction form
    3,264.72/4,506.54 = 1,939.08/x
  3. Step 3: Cross multiply
    3,264.72x = 4,506.54 × 1,939.08
  4. Step 4: Simplify right side
    3,264.72x = 8,738,541.58
  5. Step 5: Solve for x
    x = 8,738,541.58/3,264.72
  6. Step 6: Final answer
    x = 2,676.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.