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Finding the Fourth Proportional to 50,765.46, 70,055.46 and 28,103.97

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Solution

The fourth proportional to 50,765.46, 70,055.46 and 28,103.97 is: 38,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.46 : 70,055.46 = 28,103.97 : x
  2. Step 2: Convert to fraction form
    50,765.46/70,055.46 = 28,103.97/x
  3. Step 3: Cross multiply
    50,765.46x = 70,055.46 × 28,103.97
  4. Step 4: Simplify right side
    50,765.46x = 1,968,836,546.18
  5. Step 5: Solve for x
    x = 1,968,836,546.18/50,765.46
  6. Step 6: Final answer
    x = 38,782.99

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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.