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Finding the Fourth Proportional to 18,096.60, 27,128.70 and 16,128.30

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Solution

The fourth proportional to 18,096.60, 27,128.70 and 16,128.30 is: 24,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,096.60 : 27,128.70 = 16,128.30 : x
  2. Step 2: Convert to fraction form
    18,096.60/27,128.70 = 16,128.30/x
  3. Step 3: Cross multiply
    18,096.60x = 27,128.70 × 16,128.30
  4. Step 4: Simplify right side
    18,096.60x = 437,539,812.21
  5. Step 5: Solve for x
    x = 437,539,812.21/18,096.60
  6. Step 6: Final answer
    x = 24,178.01

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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.