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Finding the Fourth Proportional to 22,422.20, 30,953.80 and 17,375

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Solution

The fourth proportional to 22,422.20, 30,953.80 and 17,375 is: 23,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,422.20 : 30,953.80 = 17,375 : x
  2. Step 2: Convert to fraction form
    22,422.20/30,953.80 = 17,375/x
  3. Step 3: Cross multiply
    22,422.20x = 30,953.80 × 17,375
  4. Step 4: Simplify right side
    22,422.20x = 537,822,275
  5. Step 5: Solve for x
    x = 537,822,275/22,422.20
  6. Step 6: Final answer
    x = 23,986.15

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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.