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Finding the Fourth Proportional to 65,836.60, 98,754.45 and 26,393.16

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Solution

The fourth proportional to 65,836.60, 98,754.45 and 26,393.16 is: 39,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,836.60 : 98,754.45 = 26,393.16 : x
  2. Step 2: Convert to fraction form
    65,836.60/98,754.45 = 26,393.16/x
  3. Step 3: Cross multiply
    65,836.60x = 98,754.45 × 26,393.16
  4. Step 4: Simplify right side
    65,836.60x = 2,606,441,999.56
  5. Step 5: Solve for x
    x = 2,606,441,999.56/65,836.60
  6. Step 6: Final answer
    x = 39,589.56

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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.