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Finding the Fourth Proportional to 12,662.66, 18,993.78 and 4,873.16

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Solution

The fourth proportional to 12,662.66, 18,993.78 and 4,873.16 is: 7,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.66 : 18,993.78 = 4,873.16 : x
  2. Step 2: Convert to fraction form
    12,662.66/18,993.78 = 4,873.16/x
  3. Step 3: Cross multiply
    12,662.66x = 18,993.78 × 4,873.16
  4. Step 4: Simplify right side
    12,662.66x = 92,559,728.94
  5. Step 5: Solve for x
    x = 92,559,728.94/12,662.66
  6. Step 6: Final answer
    x = 7,309.66

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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.