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Finding the Fourth Proportional to 18,659.28, 27,905.40 and 16,592.16

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Solution

The fourth proportional to 18,659.28, 27,905.40 and 16,592.16 is: 24,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.28 : 27,905.40 = 16,592.16 : x
  2. Step 2: Convert to fraction form
    18,659.28/27,905.40 = 16,592.16/x
  3. Step 3: Cross multiply
    18,659.28x = 27,905.40 × 16,592.16
  4. Step 4: Simplify right side
    18,659.28x = 463,010,861.66
  5. Step 5: Solve for x
    x = 463,010,861.66/18,659.28
  6. Step 6: Final answer
    x = 24,813.97

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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.