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Finding the Fourth Proportional to 18,887.51, 26,054.41 and 11,714.95

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Solution

The fourth proportional to 18,887.51, 26,054.41 and 11,714.95 is: 16,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.51 : 26,054.41 = 11,714.95 : x
  2. Step 2: Convert to fraction form
    18,887.51/26,054.41 = 11,714.95/x
  3. Step 3: Cross multiply
    18,887.51x = 26,054.41 × 11,714.95
  4. Step 4: Simplify right side
    18,887.51x = 305,226,113.71
  5. Step 5: Solve for x
    x = 305,226,113.71/18,887.51
  6. Step 6: Final answer
    x = 16,160.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.