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Finding the Fourth Proportional to 43,954.07, 65,921.06 and 20,238.89

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Solution

The fourth proportional to 43,954.07, 65,921.06 and 20,238.89 is: 30,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,954.07 : 65,921.06 = 20,238.89 : x
  2. Step 2: Convert to fraction form
    43,954.07/65,921.06 = 20,238.89/x
  3. Step 3: Cross multiply
    43,954.07x = 65,921.06 × 20,238.89
  4. Step 4: Simplify right side
    43,954.07x = 1,334,168,651.22
  5. Step 5: Solve for x
    x = 1,334,168,651.22/43,954.07
  6. Step 6: Final answer
    x = 30,353.70

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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.