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Finding the Fourth Proportional to 50,873.40, 70,205.46 and 28,212.66

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Solution

The fourth proportional to 50,873.40, 70,205.46 and 28,212.66 is: 38,933.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,873.40 : 70,205.46 = 28,212.66 : x
  2. Step 2: Convert to fraction form
    50,873.40/70,205.46 = 28,212.66/x
  3. Step 3: Cross multiply
    50,873.40x = 70,205.46 × 28,212.66
  4. Step 4: Simplify right side
    50,873.40x = 1,980,682,773.12
  5. Step 5: Solve for x
    x = 1,980,682,773.12/50,873.40
  6. Step 6: Final answer
    x = 38,933.56

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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.