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Finding the Fourth Proportional to 2,968.56, 4,452.66 and 777.24

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Solution

The fourth proportional to 2,968.56, 4,452.66 and 777.24 is: 1,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.56 : 4,452.66 = 777.24 : x
  2. Step 2: Convert to fraction form
    2,968.56/4,452.66 = 777.24/x
  3. Step 3: Cross multiply
    2,968.56x = 4,452.66 × 777.24
  4. Step 4: Simplify right side
    2,968.56x = 3,460,785.46
  5. Step 5: Solve for x
    x = 3,460,785.46/2,968.56
  6. Step 6: Final answer
    x = 1,165.81

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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.