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Finding the Fourth Proportional to 1,966.49, 2,713.98 and 1,127.46

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Solution

The fourth proportional to 1,966.49, 2,713.98 and 1,127.46 is: 1,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,966.49 : 2,713.98 = 1,127.46 : x
  2. Step 2: Convert to fraction form
    1,966.49/2,713.98 = 1,127.46/x
  3. Step 3: Cross multiply
    1,966.49x = 2,713.98 × 1,127.46
  4. Step 4: Simplify right side
    1,966.49x = 3,059,903.89
  5. Step 5: Solve for x
    x = 3,059,903.89/1,966.49
  6. Step 6: Final answer
    x = 1,556.03

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