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Finding the Fourth Proportional to 12,025.65, 18,074.22 and 9,958.94

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Solution

The fourth proportional to 12,025.65, 18,074.22 and 9,958.94 is: 14,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.65 : 18,074.22 = 9,958.94 : x
  2. Step 2: Convert to fraction form
    12,025.65/18,074.22 = 9,958.94/x
  3. Step 3: Cross multiply
    12,025.65x = 18,074.22 × 9,958.94
  4. Step 4: Simplify right side
    12,025.65x = 180,000,072.53
  5. Step 5: Solve for x
    x = 180,000,072.53/12,025.65
  6. Step 6: Final answer
    x = 14,968.01

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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.