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Finding the Fourth Proportional to 31,525.93, 43,506.12 and 17,379.28

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Solution

The fourth proportional to 31,525.93, 43,506.12 and 17,379.28 is: 23,983.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.93 : 43,506.12 = 17,379.28 : x
  2. Step 2: Convert to fraction form
    31,525.93/43,506.12 = 17,379.28/x
  3. Step 3: Cross multiply
    31,525.93x = 43,506.12 × 17,379.28
  4. Step 4: Simplify right side
    31,525.93x = 756,105,041.19
  5. Step 5: Solve for x
    x = 756,105,041.19/31,525.93
  6. Step 6: Final answer
    x = 23,983.59

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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.