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Finding the Fourth Proportional to 21,872.60, 32,825.10 and 16,040.60

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Solution

The fourth proportional to 21,872.60, 32,825.10 and 16,040.60 is: 24,072.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872.60 : 32,825.10 = 16,040.60 : x
  2. Step 2: Convert to fraction form
    21,872.60/32,825.10 = 16,040.60/x
  3. Step 3: Cross multiply
    21,872.60x = 32,825.10 × 16,040.60
  4. Step 4: Simplify right side
    21,872.60x = 526,534,299.06
  5. Step 5: Solve for x
    x = 526,534,299.06/21,872.60
  6. Step 6: Final answer
    x = 24,072.78

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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.