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Finding the Fourth Proportional to 17,260.19, 25,890.03 and 7,765.81

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Solution

The fourth proportional to 17,260.19, 25,890.03 and 7,765.81 is: 11,648.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,260.19 : 25,890.03 = 7,765.81 : x
  2. Step 2: Convert to fraction form
    17,260.19/25,890.03 = 7,765.81/x
  3. Step 3: Cross multiply
    17,260.19x = 25,890.03 × 7,765.81
  4. Step 4: Simplify right side
    17,260.19x = 201,056,895.30
  5. Step 5: Solve for x
    x = 201,056,895.30/17,260.19
  6. Step 6: Final answer
    x = 11,648.59

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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.