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Finding the Fourth Proportional to 18,466.98, 25,656.49 and 18,245.55

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Solution

The fourth proportional to 18,466.98, 25,656.49 and 18,245.55 is: 25,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.98 : 25,656.49 = 18,245.55 : x
  2. Step 2: Convert to fraction form
    18,466.98/25,656.49 = 18,245.55/x
  3. Step 3: Cross multiply
    18,466.98x = 25,656.49 × 18,245.55
  4. Step 4: Simplify right side
    18,466.98x = 468,116,679.89
  5. Step 5: Solve for x
    x = 468,116,679.89/18,466.98
  6. Step 6: Final answer
    x = 25,348.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.