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Finding the Fourth Proportional to 2,693.70, 4,044.60 and 2,078.10

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Solution

The fourth proportional to 2,693.70, 4,044.60 and 2,078.10 is: 3,120.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.70 : 4,044.60 = 2,078.10 : x
  2. Step 2: Convert to fraction form
    2,693.70/4,044.60 = 2,078.10/x
  3. Step 3: Cross multiply
    2,693.70x = 4,044.60 × 2,078.10
  4. Step 4: Simplify right side
    2,693.70x = 8,405,083.26
  5. Step 5: Solve for x
    x = 8,405,083.26/2,693.70
  6. Step 6: Final answer
    x = 3,120.27

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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.