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Finding the Fourth Proportional to 44,571.94, 66,859.12 and 12,980.72

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Solution

The fourth proportional to 44,571.94, 66,859.12 and 12,980.72 is: 19,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,571.94 : 66,859.12 = 12,980.72 : x
  2. Step 2: Convert to fraction form
    44,571.94/66,859.12 = 12,980.72/x
  3. Step 3: Cross multiply
    44,571.94x = 66,859.12 × 12,980.72
  4. Step 4: Simplify right side
    44,571.94x = 867,879,516.17
  5. Step 5: Solve for x
    x = 867,879,516.17/44,571.94
  6. Step 6: Final answer
    x = 19,471.43

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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.