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Finding the Fourth Proportional to 7,993.53, 11,980.35 and 5,072.67

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Solution

The fourth proportional to 7,993.53, 11,980.35 and 5,072.67 is: 7,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.53 : 11,980.35 = 5,072.67 : x
  2. Step 2: Convert to fraction form
    7,993.53/11,980.35 = 5,072.67/x
  3. Step 3: Cross multiply
    7,993.53x = 11,980.35 × 5,072.67
  4. Step 4: Simplify right side
    7,993.53x = 60,772,362.03
  5. Step 5: Solve for x
    x = 60,772,362.03/7,993.53
  6. Step 6: Final answer
    x = 7,602.69

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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.