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Finding the Fourth Proportional to 69,642.98, 104,463.86 and 17,052.51

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Solution

The fourth proportional to 69,642.98, 104,463.86 and 17,052.51 is: 25,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,642.98 : 104,463.86 = 17,052.51 : x
  2. Step 2: Convert to fraction form
    69,642.98/104,463.86 = 17,052.51/x
  3. Step 3: Cross multiply
    69,642.98x = 104,463.86 × 17,052.51
  4. Step 4: Simplify right side
    69,642.98x = 1,781,371,017.29
  5. Step 5: Solve for x
    x = 1,781,371,017.29/69,642.98
  6. Step 6: Final answer
    x = 25,578.62

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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.