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Finding the Fourth Proportional to 50,843.59, 70,124.59 and 30,679.45

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Solution

The fourth proportional to 50,843.59, 70,124.59 and 30,679.45 is: 42,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,843.59 : 70,124.59 = 30,679.45 : x
  2. Step 2: Convert to fraction form
    50,843.59/70,124.59 = 30,679.45/x
  3. Step 3: Cross multiply
    50,843.59x = 70,124.59 × 30,679.45
  4. Step 4: Simplify right side
    50,843.59x = 2,151,383,600.67
  5. Step 5: Solve for x
    x = 2,151,383,600.67/50,843.59
  6. Step 6: Final answer
    x = 42,313.76

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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.