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Finding the Fourth Proportional to 2,096.39, 2,892.80 and 1,212.48

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Solution

The fourth proportional to 2,096.39, 2,892.80 and 1,212.48 is: 1,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,096.39 : 2,892.80 = 1,212.48 : x
  2. Step 2: Convert to fraction form
    2,096.39/2,892.80 = 1,212.48/x
  3. Step 3: Cross multiply
    2,096.39x = 2,892.80 × 1,212.48
  4. Step 4: Simplify right side
    2,096.39x = 3,507,465.18
  5. Step 5: Solve for x
    x = 3,507,465.18/2,096.39
  6. Step 6: Final answer
    x = 1,673.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.