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Finding the Fourth Proportional to 44,657.70, 66,986.55 and 18,381.30

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Solution

The fourth proportional to 44,657.70, 66,986.55 and 18,381.30 is: 27,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,657.70 : 66,986.55 = 18,381.30 : x
  2. Step 2: Convert to fraction form
    44,657.70/66,986.55 = 18,381.30/x
  3. Step 3: Cross multiply
    44,657.70x = 66,986.55 × 18,381.30
  4. Step 4: Simplify right side
    44,657.70x = 1,231,299,871.52
  5. Step 5: Solve for x
    x = 1,231,299,871.52/44,657.70
  6. Step 6: Final answer
    x = 27,571.95

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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.