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Finding the Fourth Proportional to 1,844.99, 2,768.18 and 749.64

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Solution

The fourth proportional to 1,844.99, 2,768.18 and 749.64 is: 1,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.99 : 2,768.18 = 749.64 : x
  2. Step 2: Convert to fraction form
    1,844.99/2,768.18 = 749.64/x
  3. Step 3: Cross multiply
    1,844.99x = 2,768.18 × 749.64
  4. Step 4: Simplify right side
    1,844.99x = 2,075,134.71
  5. Step 5: Solve for x
    x = 2,075,134.71/1,844.99
  6. Step 6: Final answer
    x = 1,124.74

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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.