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Finding the Fourth Proportional to 18,563.53, 25,637.11 and 16,964.29

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Solution

The fourth proportional to 18,563.53, 25,637.11 and 16,964.29 is: 23,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.53 : 25,637.11 = 16,964.29 : x
  2. Step 2: Convert to fraction form
    18,563.53/25,637.11 = 16,964.29/x
  3. Step 3: Cross multiply
    18,563.53x = 25,637.11 × 16,964.29
  4. Step 4: Simplify right side
    18,563.53x = 434,915,214.23
  5. Step 5: Solve for x
    x = 434,915,214.23/18,563.53
  6. Step 6: Final answer
    x = 23,428.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.