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Finding the Fourth Proportional to 10,855.53, 16,291.07 and 4,619.92

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Solution

The fourth proportional to 10,855.53, 16,291.07 and 4,619.92 is: 6,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.53 : 16,291.07 = 4,619.92 : x
  2. Step 2: Convert to fraction form
    10,855.53/16,291.07 = 4,619.92/x
  3. Step 3: Cross multiply
    10,855.53x = 16,291.07 × 4,619.92
  4. Step 4: Simplify right side
    10,855.53x = 75,263,396.65
  5. Step 5: Solve for x
    x = 75,263,396.65/10,855.53
  6. Step 6: Final answer
    x = 6,933.19

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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.