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Finding the Fourth Proportional to 14,647.65, 20,213.78 and 7,933.33

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Solution

The fourth proportional to 14,647.65, 20,213.78 and 7,933.33 is: 10,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,647.65 : 20,213.78 = 7,933.33 : x
  2. Step 2: Convert to fraction form
    14,647.65/20,213.78 = 7,933.33/x
  3. Step 3: Cross multiply
    14,647.65x = 20,213.78 × 7,933.33
  4. Step 4: Simplify right side
    14,647.65x = 160,362,652.05
  5. Step 5: Solve for x
    x = 160,362,652.05/14,647.65
  6. Step 6: Final answer
    x = 10,948.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.