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Finding the Fourth Proportional to 2,361.01, 3,258.12 and 1,313

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Solution

The fourth proportional to 2,361.01, 3,258.12 and 1,313 is: 1,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.01 : 3,258.12 = 1,313 : x
  2. Step 2: Convert to fraction form
    2,361.01/3,258.12 = 1,313/x
  3. Step 3: Cross multiply
    2,361.01x = 3,258.12 × 1,313
  4. Step 4: Simplify right side
    2,361.01x = 4,277,911.56
  5. Step 5: Solve for x
    x = 4,277,911.56/2,361.01
  6. Step 6: Final answer
    x = 1,811.90

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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.