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Finding the Fourth Proportional to 2,968.16, 4,450.72 and 993.08

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Solution

The fourth proportional to 2,968.16, 4,450.72 and 993.08 is: 1,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.16 : 4,450.72 = 993.08 : x
  2. Step 2: Convert to fraction form
    2,968.16/4,450.72 = 993.08/x
  3. Step 3: Cross multiply
    2,968.16x = 4,450.72 × 993.08
  4. Step 4: Simplify right side
    2,968.16x = 4,419,921.02
  5. Step 5: Solve for x
    x = 4,419,921.02/2,968.16
  6. Step 6: Final answer
    x = 1,489.11

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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.