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Finding the Fourth Proportional to 2,295.94, 3,168.40 and 1,248

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Solution

The fourth proportional to 2,295.94, 3,168.40 and 1,248 is: 1,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.94 : 3,168.40 = 1,248 : x
  2. Step 2: Convert to fraction form
    2,295.94/3,168.40 = 1,248/x
  3. Step 3: Cross multiply
    2,295.94x = 3,168.40 × 1,248
  4. Step 4: Simplify right side
    2,295.94x = 3,954,163.20
  5. Step 5: Solve for x
    x = 3,954,163.20/2,295.94
  6. Step 6: Final answer
    x = 1,722.24

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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.