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Finding the Fourth Proportional to 13,866.75, 20,800.13 and 4,632.75

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Solution

The fourth proportional to 13,866.75, 20,800.13 and 4,632.75 is: 6,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.75 : 20,800.13 = 4,632.75 : x
  2. Step 2: Convert to fraction form
    13,866.75/20,800.13 = 4,632.75/x
  3. Step 3: Cross multiply
    13,866.75x = 20,800.13 × 4,632.75
  4. Step 4: Simplify right side
    13,866.75x = 96,361,779.09
  5. Step 5: Solve for x
    x = 96,361,779.09/13,866.75
  6. Step 6: Final answer
    x = 6,949.13

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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.