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Finding the Fourth Proportional to 51,378.84, 70,863.84 and 44,220.60

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Solution

The fourth proportional to 51,378.84, 70,863.84 and 44,220.60 is: 60,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.84 : 70,863.84 = 44,220.60 : x
  2. Step 2: Convert to fraction form
    51,378.84/70,863.84 = 44,220.60/x
  3. Step 3: Cross multiply
    51,378.84x = 70,863.84 × 44,220.60
  4. Step 4: Simplify right side
    51,378.84x = 3,133,641,523.10
  5. Step 5: Solve for x
    x = 3,133,641,523.10/51,378.84
  6. Step 6: Final answer
    x = 60,990.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.