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Finding the Fourth Proportional to 18,410.60, 27,615.90 and 16,223.60

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Solution

The fourth proportional to 18,410.60, 27,615.90 and 16,223.60 is: 24,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.60 : 27,615.90 = 16,223.60 : x
  2. Step 2: Convert to fraction form
    18,410.60/27,615.90 = 16,223.60/x
  3. Step 3: Cross multiply
    18,410.60x = 27,615.90 × 16,223.60
  4. Step 4: Simplify right side
    18,410.60x = 448,029,315.24
  5. Step 5: Solve for x
    x = 448,029,315.24/18,410.60
  6. Step 6: Final answer
    x = 24,335.40

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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.