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Finding the Fourth Proportional to 24,639.60, 33,993 and 15,191.76

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Solution

The fourth proportional to 24,639.60, 33,993 and 15,191.76 is: 20,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,639.60 : 33,993 = 15,191.76 : x
  2. Step 2: Convert to fraction form
    24,639.60/33,993 = 15,191.76/x
  3. Step 3: Cross multiply
    24,639.60x = 33,993 × 15,191.76
  4. Step 4: Simplify right side
    24,639.60x = 516,413,497.68
  5. Step 5: Solve for x
    x = 516,413,497.68/24,639.60
  6. Step 6: Final answer
    x = 20,958.68

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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.