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Finding the Fourth Proportional to 23,644.60, 35,390.10 and 18,422.20

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Solution

The fourth proportional to 23,644.60, 35,390.10 and 18,422.20 is: 27,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,644.60 : 35,390.10 = 18,422.20 : x
  2. Step 2: Convert to fraction form
    23,644.60/35,390.10 = 18,422.20/x
  3. Step 3: Cross multiply
    23,644.60x = 35,390.10 × 18,422.20
  4. Step 4: Simplify right side
    23,644.60x = 651,963,500.22
  5. Step 5: Solve for x
    x = 651,963,500.22/23,644.60
  6. Step 6: Final answer
    x = 27,573.46

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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.