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Finding the Fourth Proportional to 18,632.67, 25,713.18 and 10,134.85

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Solution

The fourth proportional to 18,632.67, 25,713.18 and 10,134.85 is: 13,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.67 : 25,713.18 = 10,134.85 : x
  2. Step 2: Convert to fraction form
    18,632.67/25,713.18 = 10,134.85/x
  3. Step 3: Cross multiply
    18,632.67x = 25,713.18 × 10,134.85
  4. Step 4: Simplify right side
    18,632.67x = 260,599,222.32
  5. Step 5: Solve for x
    x = 260,599,222.32/18,632.67
  6. Step 6: Final answer
    x = 13,986.14

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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.