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Finding the Fourth Proportional to 23,619.21, 32,608.07 and 15,672.21

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Solution

The fourth proportional to 23,619.21, 32,608.07 and 15,672.21 is: 21,636.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,619.21 : 32,608.07 = 15,672.21 : x
  2. Step 2: Convert to fraction form
    23,619.21/32,608.07 = 15,672.21/x
  3. Step 3: Cross multiply
    23,619.21x = 32,608.07 × 15,672.21
  4. Step 4: Simplify right side
    23,619.21x = 511,040,442.37
  5. Step 5: Solve for x
    x = 511,040,442.37/23,619.21
  6. Step 6: Final answer
    x = 21,636.64

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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.