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Finding the Fourth Proportional to 19,552.51, 26,982.11 and 11,054.48

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Solution

The fourth proportional to 19,552.51, 26,982.11 and 11,054.48 is: 15,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,552.51 : 26,982.11 = 11,054.48 : x
  2. Step 2: Convert to fraction form
    19,552.51/26,982.11 = 11,054.48/x
  3. Step 3: Cross multiply
    19,552.51x = 26,982.11 × 11,054.48
  4. Step 4: Simplify right side
    19,552.51x = 298,273,140.08
  5. Step 5: Solve for x
    x = 298,273,140.08/19,552.51
  6. Step 6: Final answer
    x = 15,254.98

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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.