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Finding the Fourth Proportional to 3,522.67, 5,282.64 and 1,878.32

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Solution

The fourth proportional to 3,522.67, 5,282.64 and 1,878.32 is: 2,816.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.67 : 5,282.64 = 1,878.32 : x
  2. Step 2: Convert to fraction form
    3,522.67/5,282.64 = 1,878.32/x
  3. Step 3: Cross multiply
    3,522.67x = 5,282.64 × 1,878.32
  4. Step 4: Simplify right side
    3,522.67x = 9,922,488.36
  5. Step 5: Solve for x
    x = 9,922,488.36/3,522.67
  6. Step 6: Final answer
    x = 2,816.75

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1.5x scale

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.