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Finding the Fourth Proportional to 12,466.98, 18,690.12 and 5,074.92

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Solution

The fourth proportional to 12,466.98, 18,690.12 and 5,074.92 is: 7,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.98 : 18,690.12 = 5,074.92 : x
  2. Step 2: Convert to fraction form
    12,466.98/18,690.12 = 5,074.92/x
  3. Step 3: Cross multiply
    12,466.98x = 18,690.12 × 5,074.92
  4. Step 4: Simplify right side
    12,466.98x = 94,850,863.79
  5. Step 5: Solve for x
    x = 94,850,863.79/12,466.98
  6. Step 6: Final answer
    x = 7,608.17

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1.5x scale

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.