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Finding the Fourth Proportional to 19,167.97, 26,451.79 and 10,669.90

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Solution

The fourth proportional to 19,167.97, 26,451.79 and 10,669.90 is: 14,724.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,167.97 : 26,451.79 = 10,669.90 : x
  2. Step 2: Convert to fraction form
    19,167.97/26,451.79 = 10,669.90/x
  3. Step 3: Cross multiply
    19,167.97x = 26,451.79 × 10,669.90
  4. Step 4: Simplify right side
    19,167.97x = 282,237,954.12
  5. Step 5: Solve for x
    x = 282,237,954.12/19,167.97
  6. Step 6: Final answer
    x = 14,724.46

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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.