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Finding the Fourth Proportional to 1,223.36, 1,835.52 and 965.12

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Solution

The fourth proportional to 1,223.36, 1,835.52 and 965.12 is: 1,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.36 : 1,835.52 = 965.12 : x
  2. Step 2: Convert to fraction form
    1,223.36/1,835.52 = 965.12/x
  3. Step 3: Cross multiply
    1,223.36x = 1,835.52 × 965.12
  4. Step 4: Simplify right side
    1,223.36x = 1,771,497.06
  5. Step 5: Solve for x
    x = 1,771,497.06/1,223.36
  6. Step 6: Final answer
    x = 1,448.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.