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Finding the Fourth Proportional to 18,632.56, 25,723.56 and 12,353.44

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Solution

The fourth proportional to 18,632.56, 25,723.56 and 12,353.44 is: 17,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.56 : 25,723.56 = 12,353.44 : x
  2. Step 2: Convert to fraction form
    18,632.56/25,723.56 = 12,353.44/x
  3. Step 3: Cross multiply
    18,632.56x = 25,723.56 × 12,353.44
  4. Step 4: Simplify right side
    18,632.56x = 317,774,455.05
  5. Step 5: Solve for x
    x = 317,774,455.05/18,632.56
  6. Step 6: Final answer
    x = 17,054.79

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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.