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Finding the Fourth Proportional to 21,591.59, 32,378.82 and 10,494.99

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Solution

The fourth proportional to 21,591.59, 32,378.82 and 10,494.99 is: 15,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.59 : 32,378.82 = 10,494.99 : x
  2. Step 2: Convert to fraction form
    21,591.59/32,378.82 = 10,494.99/x
  3. Step 3: Cross multiply
    21,591.59x = 32,378.82 × 10,494.99
  4. Step 4: Simplify right side
    21,591.59x = 339,815,392.11
  5. Step 5: Solve for x
    x = 339,815,392.11/21,591.59
  6. Step 6: Final answer
    x = 15,738.33

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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.