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Finding the Fourth Proportional to 12,441.70, 18,632.94 and 6,810.99

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Solution

The fourth proportional to 12,441.70, 18,632.94 and 6,810.99 is: 10,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.70 : 18,632.94 = 6,810.99 : x
  2. Step 2: Convert to fraction form
    12,441.70/18,632.94 = 6,810.99/x
  3. Step 3: Cross multiply
    12,441.70x = 18,632.94 × 6,810.99
  4. Step 4: Simplify right side
    12,441.70x = 126,908,672.60
  5. Step 5: Solve for x
    x = 126,908,672.60/12,441.70
  6. Step 6: Final answer
    x = 10,200.27

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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.