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Finding the Fourth Proportional to 48,951.50, 73,427.31 and 12,015.50

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Solution

The fourth proportional to 48,951.50, 73,427.31 and 12,015.50 is: 18,023.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,951.50 : 73,427.31 = 12,015.50 : x
  2. Step 2: Convert to fraction form
    48,951.50/73,427.31 = 12,015.50/x
  3. Step 3: Cross multiply
    48,951.50x = 73,427.31 × 12,015.50
  4. Step 4: Simplify right side
    48,951.50x = 882,265,506.21
  5. Step 5: Solve for x
    x = 882,265,506.21/48,951.50
  6. Step 6: Final answer
    x = 18,023.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.