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Finding the Fourth Proportional to 21,884.88, 32,833.16 and 7,846.32

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Solution

The fourth proportional to 21,884.88, 32,833.16 and 7,846.32 is: 11,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.88 : 32,833.16 = 7,846.32 : x
  2. Step 2: Convert to fraction form
    21,884.88/32,833.16 = 7,846.32/x
  3. Step 3: Cross multiply
    21,884.88x = 32,833.16 × 7,846.32
  4. Step 4: Simplify right side
    21,884.88x = 257,619,479.97
  5. Step 5: Solve for x
    x = 257,619,479.97/21,884.88
  6. Step 6: Final answer
    x = 11,771.57

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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.