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Finding the Fourth Proportional to 26,652.31, 39,969.96 and 10,857.31

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Solution

The fourth proportional to 26,652.31, 39,969.96 and 10,857.31 is: 16,282.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,652.31 : 39,969.96 = 10,857.31 : x
  2. Step 2: Convert to fraction form
    26,652.31/39,969.96 = 10,857.31/x
  3. Step 3: Cross multiply
    26,652.31x = 39,969.96 × 10,857.31
  4. Step 4: Simplify right side
    26,652.31x = 433,966,246.41
  5. Step 5: Solve for x
    x = 433,966,246.41/26,652.31
  6. Step 6: Final answer
    x = 16,282.50

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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.