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Finding the Fourth Proportional to 18,112.86, 24,996.39 and 10,557.98

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Solution

The fourth proportional to 18,112.86, 24,996.39 and 10,557.98 is: 14,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.86 : 24,996.39 = 10,557.98 : x
  2. Step 2: Convert to fraction form
    18,112.86/24,996.39 = 10,557.98/x
  3. Step 3: Cross multiply
    18,112.86x = 24,996.39 × 10,557.98
  4. Step 4: Simplify right side
    18,112.86x = 263,911,260.71
  5. Step 5: Solve for x
    x = 263,911,260.71/18,112.86
  6. Step 6: Final answer
    x = 14,570.38

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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.