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Finding the Fourth Proportional to 65,393.86, 98,068.19 and 25,403.42

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Solution

The fourth proportional to 65,393.86, 98,068.19 and 25,403.42 is: 38,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,393.86 : 98,068.19 = 25,403.42 : x
  2. Step 2: Convert to fraction form
    65,393.86/98,068.19 = 25,403.42/x
  3. Step 3: Cross multiply
    65,393.86x = 98,068.19 × 25,403.42
  4. Step 4: Simplify right side
    65,393.86x = 2,491,267,751.70
  5. Step 5: Solve for x
    x = 2,491,267,751.70/65,393.86
  6. Step 6: Final answer
    x = 38,096.36

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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.