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Finding the Fourth Proportional to 18,173.73, 25,064.30 and 12,517.64

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Solution

The fourth proportional to 18,173.73, 25,064.30 and 12,517.64 is: 17,263.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.73 : 25,064.30 = 12,517.64 : x
  2. Step 2: Convert to fraction form
    18,173.73/25,064.30 = 12,517.64/x
  3. Step 3: Cross multiply
    18,173.73x = 25,064.30 × 12,517.64
  4. Step 4: Simplify right side
    18,173.73x = 313,745,696.34
  5. Step 5: Solve for x
    x = 313,745,696.34/18,173.73
  6. Step 6: Final answer
    x = 17,263.69

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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.