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Finding the Fourth Proportional to 16,671.51, 25,010.66 and 6,811.58

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Solution

The fourth proportional to 16,671.51, 25,010.66 and 6,811.58 is: 10,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,671.51 : 25,010.66 = 6,811.58 : x
  2. Step 2: Convert to fraction form
    16,671.51/25,010.66 = 6,811.58/x
  3. Step 3: Cross multiply
    16,671.51x = 25,010.66 × 6,811.58
  4. Step 4: Simplify right side
    16,671.51x = 170,362,111.44
  5. Step 5: Solve for x
    x = 170,362,111.44/16,671.51
  6. Step 6: Final answer
    x = 10,218.76

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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.