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Finding the Fourth Proportional to 1,674.01, 2,508.68 and 1,384.99

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Solution

The fourth proportional to 1,674.01, 2,508.68 and 1,384.99 is: 2,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.01 : 2,508.68 = 1,384.99 : x
  2. Step 2: Convert to fraction form
    1,674.01/2,508.68 = 1,384.99/x
  3. Step 3: Cross multiply
    1,674.01x = 2,508.68 × 1,384.99
  4. Step 4: Simplify right side
    1,674.01x = 3,474,493.90
  5. Step 5: Solve for x
    x = 3,474,493.90/1,674.01
  6. Step 6: Final answer
    x = 2,075.55

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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.