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Finding the Fourth Proportional to 4,913.24, 7,368.78 and 1,449.68

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Solution

The fourth proportional to 4,913.24, 7,368.78 and 1,449.68 is: 2,174.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.24 : 7,368.78 = 1,449.68 : x
  2. Step 2: Convert to fraction form
    4,913.24/7,368.78 = 1,449.68/x
  3. Step 3: Cross multiply
    4,913.24x = 7,368.78 × 1,449.68
  4. Step 4: Simplify right side
    4,913.24x = 10,682,372.99
  5. Step 5: Solve for x
    x = 10,682,372.99/4,913.24
  6. Step 6: Final answer
    x = 2,174.20

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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.