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Finding the Fourth Proportional to 18,109.21, 27,106.60 and 16,204.96

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Solution

The fourth proportional to 18,109.21, 27,106.60 and 16,204.96 is: 24,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.21 : 27,106.60 = 16,204.96 : x
  2. Step 2: Convert to fraction form
    18,109.21/27,106.60 = 16,204.96/x
  3. Step 3: Cross multiply
    18,109.21x = 27,106.60 × 16,204.96
  4. Step 4: Simplify right side
    18,109.21x = 439,261,368.74
  5. Step 5: Solve for x
    x = 439,261,368.74/18,109.21
  6. Step 6: Final answer
    x = 24,256.24

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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.