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Finding the Fourth Proportional to 53,433, 80,150.58 and 13,993.56

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Solution

The fourth proportional to 53,433, 80,150.58 and 13,993.56 is: 20,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,433 : 80,150.58 = 13,993.56 : x
  2. Step 2: Convert to fraction form
    53,433/80,150.58 = 13,993.56/x
  3. Step 3: Cross multiply
    53,433x = 80,150.58 × 13,993.56
  4. Step 4: Simplify right side
    53,433x = 1,121,591,950.26
  5. Step 5: Solve for x
    x = 1,121,591,950.26/53,433
  6. Step 6: Final answer
    x = 20,990.62

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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.