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Finding the Fourth Proportional to 21,797.88, 30,023.76 and 16,752.44

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Solution

The fourth proportional to 21,797.88, 30,023.76 and 16,752.44 is: 23,074.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.88 : 30,023.76 = 16,752.44 : x
  2. Step 2: Convert to fraction form
    21,797.88/30,023.76 = 16,752.44/x
  3. Step 3: Cross multiply
    21,797.88x = 30,023.76 × 16,752.44
  4. Step 4: Simplify right side
    21,797.88x = 502,971,237.97
  5. Step 5: Solve for x
    x = 502,971,237.97/21,797.88
  6. Step 6: Final answer
    x = 23,074.32

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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.