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Finding the Fourth Proportional to 65,859.96, 98,789.58 and 26,388.84

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Solution

The fourth proportional to 65,859.96, 98,789.58 and 26,388.84 is: 39,583.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,859.96 : 98,789.58 = 26,388.84 : x
  2. Step 2: Convert to fraction form
    65,859.96/98,789.58 = 26,388.84/x
  3. Step 3: Cross multiply
    65,859.96x = 98,789.58 × 26,388.84
  4. Step 4: Simplify right side
    65,859.96x = 2,606,942,420.29
  5. Step 5: Solve for x
    x = 2,606,942,420.29/65,859.96
  6. Step 6: Final answer
    x = 39,583.12

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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.