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Finding the Fourth Proportional to 18,499.68, 25,529.04 and 10,116

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Solution

The fourth proportional to 18,499.68, 25,529.04 and 10,116 is: 13,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.68 : 25,529.04 = 10,116 : x
  2. Step 2: Convert to fraction form
    18,499.68/25,529.04 = 10,116/x
  3. Step 3: Cross multiply
    18,499.68x = 25,529.04 × 10,116
  4. Step 4: Simplify right side
    18,499.68x = 258,251,768.64
  5. Step 5: Solve for x
    x = 258,251,768.64/18,499.68
  6. Step 6: Final answer
    x = 13,959.80

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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.