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Finding the Fourth Proportional to 1,996.65, 2,994.62 and 535.68

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Solution

The fourth proportional to 1,996.65, 2,994.62 and 535.68 is: 803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.65 : 2,994.62 = 535.68 : x
  2. Step 2: Convert to fraction form
    1,996.65/2,994.62 = 535.68/x
  3. Step 3: Cross multiply
    1,996.65x = 2,994.62 × 535.68
  4. Step 4: Simplify right side
    1,996.65x = 1,604,158.38
  5. Step 5: Solve for x
    x = 1,604,158.38/1,996.65
  6. Step 6: Final answer
    x = 803.42

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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.