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Finding the Fourth Proportional to 18,998.65, 26,216.66 and 11,041.46

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Solution

The fourth proportional to 18,998.65, 26,216.66 and 11,041.46 is: 15,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.65 : 26,216.66 = 11,041.46 : x
  2. Step 2: Convert to fraction form
    18,998.65/26,216.66 = 11,041.46/x
  3. Step 3: Cross multiply
    18,998.65x = 26,216.66 × 11,041.46
  4. Step 4: Simplify right side
    18,998.65x = 289,470,345.03
  5. Step 5: Solve for x
    x = 289,470,345.03/18,998.65
  6. Step 6: Final answer
    x = 15,236.36

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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.