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Finding the Fourth Proportional to 3,925.11, 5,410.14 and 3,821.23

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Solution

The fourth proportional to 3,925.11, 5,410.14 and 3,821.23 is: 5,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.11 : 5,410.14 = 3,821.23 : x
  2. Step 2: Convert to fraction form
    3,925.11/5,410.14 = 3,821.23/x
  3. Step 3: Cross multiply
    3,925.11x = 5,410.14 × 3,821.23
  4. Step 4: Simplify right side
    3,925.11x = 20,673,389.27
  5. Step 5: Solve for x
    x = 20,673,389.27/3,925.11
  6. Step 6: Final answer
    x = 5,266.96

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1.5x scale

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.