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Finding the Fourth Proportional to 8,622.64, 12,933.70 and 2,383.03

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Solution

The fourth proportional to 8,622.64, 12,933.70 and 2,383.03 is: 3,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.64 : 12,933.70 = 2,383.03 : x
  2. Step 2: Convert to fraction form
    8,622.64/12,933.70 = 2,383.03/x
  3. Step 3: Cross multiply
    8,622.64x = 12,933.70 × 2,383.03
  4. Step 4: Simplify right side
    8,622.64x = 30,821,356.82
  5. Step 5: Solve for x
    x = 30,821,356.82/8,622.64
  6. Step 6: Final answer
    x = 3,574.47

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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.