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Finding the Fourth Proportional to 16,678.50, 25,021.02 and 7,444.50

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Solution

The fourth proportional to 16,678.50, 25,021.02 and 7,444.50 is: 11,168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.50 : 25,021.02 = 7,444.50 : x
  2. Step 2: Convert to fraction form
    16,678.50/25,021.02 = 7,444.50/x
  3. Step 3: Cross multiply
    16,678.50x = 25,021.02 × 7,444.50
  4. Step 4: Simplify right side
    16,678.50x = 186,268,983.39
  5. Step 5: Solve for x
    x = 186,268,983.39/16,678.50
  6. Step 6: Final answer
    x = 11,168.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.