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Finding the Fourth Proportional to 65,862.87, 98,794.54 and 15,942.89

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Solution

The fourth proportional to 65,862.87, 98,794.54 and 15,942.89 is: 23,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,862.87 : 98,794.54 = 15,942.89 : x
  2. Step 2: Convert to fraction form
    65,862.87/98,794.54 = 15,942.89/x
  3. Step 3: Cross multiply
    65,862.87x = 98,794.54 × 15,942.89
  4. Step 4: Simplify right side
    65,862.87x = 1,575,070,244.27
  5. Step 5: Solve for x
    x = 1,575,070,244.27/65,862.87
  6. Step 6: Final answer
    x = 23,914.39

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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.