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Finding the Fourth Proportional to 65,236.65, 97,854.99 and 18,489.93

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Solution

The fourth proportional to 65,236.65, 97,854.99 and 18,489.93 is: 27,734.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,236.65 : 97,854.99 = 18,489.93 : x
  2. Step 2: Convert to fraction form
    65,236.65/97,854.99 = 18,489.93/x
  3. Step 3: Cross multiply
    65,236.65x = 97,854.99 × 18,489.93
  4. Step 4: Simplify right side
    65,236.65x = 1,809,331,915.25
  5. Step 5: Solve for x
    x = 1,809,331,915.25/65,236.65
  6. Step 6: Final answer
    x = 27,734.90

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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.