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Finding the Fourth Proportional to 50,903.46, 70,246.78 and 28,242.70

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Solution

The fourth proportional to 50,903.46, 70,246.78 and 28,242.70 is: 38,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.46 : 70,246.78 = 28,242.70 : x
  2. Step 2: Convert to fraction form
    50,903.46/70,246.78 = 28,242.70/x
  3. Step 3: Cross multiply
    50,903.46x = 70,246.78 × 28,242.70
  4. Step 4: Simplify right side
    50,903.46x = 1,983,958,487.28
  5. Step 5: Solve for x
    x = 1,983,958,487.28/50,903.46
  6. Step 6: Final answer
    x = 38,974.92

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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.