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Finding the Fourth Proportional to 2,322.70, 3,485.24 and 1,543.24

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Solution

The fourth proportional to 2,322.70, 3,485.24 and 1,543.24 is: 2,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.70 : 3,485.24 = 1,543.24 : x
  2. Step 2: Convert to fraction form
    2,322.70/3,485.24 = 1,543.24/x
  3. Step 3: Cross multiply
    2,322.70x = 3,485.24 × 1,543.24
  4. Step 4: Simplify right side
    2,322.70x = 5,378,536.64
  5. Step 5: Solve for x
    x = 5,378,536.64/2,322.70
  6. Step 6: Final answer
    x = 2,315.64

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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.