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Finding the Fourth Proportional to 65,400.93, 98,150.85 and 25,961.40

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Solution

The fourth proportional to 65,400.93, 98,150.85 and 25,961.40 is: 38,961.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,400.93 : 98,150.85 = 25,961.40 : x
  2. Step 2: Convert to fraction form
    65,400.93/98,150.85 = 25,961.40/x
  3. Step 3: Cross multiply
    65,400.93x = 98,150.85 × 25,961.40
  4. Step 4: Simplify right side
    65,400.93x = 2,548,133,477.19
  5. Step 5: Solve for x
    x = 2,548,133,477.19/65,400.93
  6. Step 6: Final answer
    x = 38,961.73

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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.