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Finding the Fourth Proportional to 50,903.36, 70,250.50 and 28,246.64

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Solution

The fourth proportional to 50,903.36, 70,250.50 and 28,246.64 is: 38,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.36 : 70,250.50 = 28,246.64 : x
  2. Step 2: Convert to fraction form
    50,903.36/70,250.50 = 28,246.64/x
  3. Step 3: Cross multiply
    50,903.36x = 70,250.50 × 28,246.64
  4. Step 4: Simplify right side
    50,903.36x = 1,984,340,716.38
  5. Step 5: Solve for x
    x = 1,984,340,716.38/50,903.36
  6. Step 6: Final answer
    x = 38,982.51

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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.