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Finding the Fourth Proportional to 3,544.79, 5,313.72 and 1,322.00

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Solution

The fourth proportional to 3,544.79, 5,313.72 and 1,322.00 is: 1,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.79 : 5,313.72 = 1,322.00 : x
  2. Step 2: Convert to fraction form
    3,544.79/5,313.72 = 1,322.00/x
  3. Step 3: Cross multiply
    3,544.79x = 5,313.72 × 1,322.00
  4. Step 4: Simplify right side
    3,544.79x = 7,024,704.66
  5. Step 5: Solve for x
    x = 7,024,704.66/3,544.79
  6. Step 6: Final answer
    x = 1,981.70

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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.