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Finding the Fourth Proportional to 2,361.92, 3,259.32 and 1,313.96

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Solution

The fourth proportional to 2,361.92, 3,259.32 and 1,313.96 is: 1,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,361.92 : 3,259.32 = 1,313.96 : x
  2. Step 2: Convert to fraction form
    2,361.92/3,259.32 = 1,313.96/x
  3. Step 3: Cross multiply
    2,361.92x = 3,259.32 × 1,313.96
  4. Step 4: Simplify right side
    2,361.92x = 4,282,616.11
  5. Step 5: Solve for x
    x = 4,282,616.11/2,361.92
  6. Step 6: Final answer
    x = 1,813.19

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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.