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Finding the Fourth Proportional to 3,391.07, 5,085.38 and 2,662.07

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Solution

The fourth proportional to 3,391.07, 5,085.38 and 2,662.07 is: 3,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.07 : 5,085.38 = 2,662.07 : x
  2. Step 2: Convert to fraction form
    3,391.07/5,085.38 = 2,662.07/x
  3. Step 3: Cross multiply
    3,391.07x = 5,085.38 × 2,662.07
  4. Step 4: Simplify right side
    3,391.07x = 13,537,618.76
  5. Step 5: Solve for x
    x = 13,537,618.76/3,391.07
  6. Step 6: Final answer
    x = 3,992.14

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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.