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Finding the Fourth Proportional to 2,992.84, 4,487.02 and 2,065.75

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Solution

The fourth proportional to 2,992.84, 4,487.02 and 2,065.75 is: 3,097.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.84 : 4,487.02 = 2,065.75 : x
  2. Step 2: Convert to fraction form
    2,992.84/4,487.02 = 2,065.75/x
  3. Step 3: Cross multiply
    2,992.84x = 4,487.02 × 2,065.75
  4. Step 4: Simplify right side
    2,992.84x = 9,269,045.18
  5. Step 5: Solve for x
    x = 9,269,045.18/2,992.84
  6. Step 6: Final answer
    x = 3,097.08

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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.