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Finding the Fourth Proportional to 18,632.56, 25,713 and 10,134.68

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Solution

The fourth proportional to 18,632.56, 25,713 and 10,134.68 is: 13,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.56 : 25,713 = 10,134.68 : x
  2. Step 2: Convert to fraction form
    18,632.56/25,713 = 10,134.68/x
  3. Step 3: Cross multiply
    18,632.56x = 25,713 × 10,134.68
  4. Step 4: Simplify right side
    18,632.56x = 260,593,026.84
  5. Step 5: Solve for x
    x = 260,593,026.84/18,632.56
  6. Step 6: Final answer
    x = 13,985.89

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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.