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Finding the Fourth Proportional to 2,996.94, 4,490.54 and 2,127

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Solution

The fourth proportional to 2,996.94, 4,490.54 and 2,127 is: 3,187.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.94 : 4,490.54 = 2,127 : x
  2. Step 2: Convert to fraction form
    2,996.94/4,490.54 = 2,127/x
  3. Step 3: Cross multiply
    2,996.94x = 4,490.54 × 2,127
  4. Step 4: Simplify right side
    2,996.94x = 9,551,378.58
  5. Step 5: Solve for x
    x = 9,551,378.58/2,996.94
  6. Step 6: Final answer
    x = 3,187.04

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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.