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Finding the Fourth Proportional to 3,522.81, 5,284.22 and 925.75

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Solution

The fourth proportional to 3,522.81, 5,284.22 and 925.75 is: 1,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.81 : 5,284.22 = 925.75 : x
  2. Step 2: Convert to fraction form
    3,522.81/5,284.22 = 925.75/x
  3. Step 3: Cross multiply
    3,522.81x = 5,284.22 × 925.75
  4. Step 4: Simplify right side
    3,522.81x = 4,891,866.67
  5. Step 5: Solve for x
    x = 4,891,866.67/3,522.81
  6. Step 6: Final answer
    x = 1,388.63

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Similar ratio
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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.