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Finding the Fourth Proportional to 1,115.49, 1,536.06 and 956.94

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Solution

The fourth proportional to 1,115.49, 1,536.06 and 956.94 is: 1,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.49 : 1,536.06 = 956.94 : x
  2. Step 2: Convert to fraction form
    1,115.49/1,536.06 = 956.94/x
  3. Step 3: Cross multiply
    1,115.49x = 1,536.06 × 956.94
  4. Step 4: Simplify right side
    1,115.49x = 1,469,917.26
  5. Step 5: Solve for x
    x = 1,469,917.26/1,115.49
  6. Step 6: Final answer
    x = 1,317.73

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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.