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Finding the Fourth Proportional to 2,993.74, 4,490.64 and 1,045.96

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Solution

The fourth proportional to 2,993.74, 4,490.64 and 1,045.96 is: 1,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.74 : 4,490.64 = 1,045.96 : x
  2. Step 2: Convert to fraction form
    2,993.74/4,490.64 = 1,045.96/x
  3. Step 3: Cross multiply
    2,993.74x = 4,490.64 × 1,045.96
  4. Step 4: Simplify right side
    2,993.74x = 4,697,018.59
  5. Step 5: Solve for x
    x = 4,697,018.59/2,993.74
  6. Step 6: Final answer
    x = 1,568.95

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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.