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Finding the Fourth Proportional to 30,865.80, 46,287.90 and 16,069.80

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Solution

The fourth proportional to 30,865.80, 46,287.90 and 16,069.80 is: 24,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.80 : 46,287.90 = 16,069.80 : x
  2. Step 2: Convert to fraction form
    30,865.80/46,287.90 = 16,069.80/x
  3. Step 3: Cross multiply
    30,865.80x = 46,287.90 × 16,069.80
  4. Step 4: Simplify right side
    30,865.80x = 743,837,295.42
  5. Step 5: Solve for x
    x = 743,837,295.42/30,865.80
  6. Step 6: Final answer
    x = 24,099.08

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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.