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Finding the Fourth Proportional to 65,849.75, 90,872.65 and 35,635.07

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Solution

The fourth proportional to 65,849.75, 90,872.65 and 35,635.07 is: 49,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,849.75 : 90,872.65 = 35,635.07 : x
  2. Step 2: Convert to fraction form
    65,849.75/90,872.65 = 35,635.07/x
  3. Step 3: Cross multiply
    65,849.75x = 90,872.65 × 35,635.07
  4. Step 4: Simplify right side
    65,849.75x = 3,238,253,243.84
  5. Step 5: Solve for x
    x = 3,238,253,243.84/65,849.75
  6. Step 6: Final answer
    x = 49,176.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.