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Finding the Fourth Proportional to 1,955.13, 2,698.17 and 1,071

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Solution

The fourth proportional to 1,955.13, 2,698.17 and 1,071 is: 1,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.13 : 2,698.17 = 1,071 : x
  2. Step 2: Convert to fraction form
    1,955.13/2,698.17 = 1,071/x
  3. Step 3: Cross multiply
    1,955.13x = 2,698.17 × 1,071
  4. Step 4: Simplify right side
    1,955.13x = 2,889,740.07
  5. Step 5: Solve for x
    x = 2,889,740.07/1,955.13
  6. Step 6: Final answer
    x = 1,478.03

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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.