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Finding the Fourth Proportional to 3,223.54, 4,448.16 and 1,878.94

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Solution

The fourth proportional to 3,223.54, 4,448.16 and 1,878.94 is: 2,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.54 : 4,448.16 = 1,878.94 : x
  2. Step 2: Convert to fraction form
    3,223.54/4,448.16 = 1,878.94/x
  3. Step 3: Cross multiply
    3,223.54x = 4,448.16 × 1,878.94
  4. Step 4: Simplify right side
    3,223.54x = 8,357,825.75
  5. Step 5: Solve for x
    x = 8,357,825.75/3,223.54
  6. Step 6: Final answer
    x = 2,592.75

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1.5x scale

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.