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Finding the Fourth Proportional to 2,992.84, 4,486.50 and 1,260.52

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Solution

The fourth proportional to 2,992.84, 4,486.50 and 1,260.52 is: 1,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.84 : 4,486.50 = 1,260.52 : x
  2. Step 2: Convert to fraction form
    2,992.84/4,486.50 = 1,260.52/x
  3. Step 3: Cross multiply
    2,992.84x = 4,486.50 × 1,260.52
  4. Step 4: Simplify right side
    2,992.84x = 5,655,322.98
  5. Step 5: Solve for x
    x = 5,655,322.98/2,992.84
  6. Step 6: Final answer
    x = 1,889.62

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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.