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Finding the Fourth Proportional to 2,014.53, 3,022.10 and 918.90

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Solution

The fourth proportional to 2,014.53, 3,022.10 and 918.90 is: 1,378.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.53 : 3,022.10 = 918.90 : x
  2. Step 2: Convert to fraction form
    2,014.53/3,022.10 = 918.90/x
  3. Step 3: Cross multiply
    2,014.53x = 3,022.10 × 918.90
  4. Step 4: Simplify right side
    2,014.53x = 2,777,007.69
  5. Step 5: Solve for x
    x = 2,777,007.69/2,014.53
  6. Step 6: Final answer
    x = 1,378.49

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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.