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Finding the Fourth Proportional to 1,705.94, 2,351.94 and 1,116.26

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Solution

The fourth proportional to 1,705.94, 2,351.94 and 1,116.26 is: 1,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705.94 : 2,351.94 = 1,116.26 : x
  2. Step 2: Convert to fraction form
    1,705.94/2,351.94 = 1,116.26/x
  3. Step 3: Cross multiply
    1,705.94x = 2,351.94 × 1,116.26
  4. Step 4: Simplify right side
    1,705.94x = 2,625,376.54
  5. Step 5: Solve for x
    x = 2,625,376.54/1,705.94
  6. Step 6: Final answer
    x = 1,538.96

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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.