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Finding the Fourth Proportional to 1,633.94, 2,448.75 and 756.32

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Solution

The fourth proportional to 1,633.94, 2,448.75 and 756.32 is: 1,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.94 : 2,448.75 = 756.32 : x
  2. Step 2: Convert to fraction form
    1,633.94/2,448.75 = 756.32/x
  3. Step 3: Cross multiply
    1,633.94x = 2,448.75 × 756.32
  4. Step 4: Simplify right side
    1,633.94x = 1,852,026.36
  5. Step 5: Solve for x
    x = 1,852,026.36/1,633.94
  6. Step 6: Final answer
    x = 1,133.48

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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.