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Finding the Fourth Proportional to 16,955.80, 25,433.30 and 4,643.80

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Solution

The fourth proportional to 16,955.80, 25,433.30 and 4,643.80 is: 6,965.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,955.80 : 25,433.30 = 4,643.80 : x
  2. Step 2: Convert to fraction form
    16,955.80/25,433.30 = 4,643.80/x
  3. Step 3: Cross multiply
    16,955.80x = 25,433.30 × 4,643.80
  4. Step 4: Simplify right side
    16,955.80x = 118,107,158.54
  5. Step 5: Solve for x
    x = 118,107,158.54/16,955.80
  6. Step 6: Final answer
    x = 6,965.59

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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.