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Finding the Fourth Proportional to 65,960.38, 98,870.91 and 21,575.26

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Solution

The fourth proportional to 65,960.38, 98,870.91 and 21,575.26 is: 32,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,960.38 : 98,870.91 = 21,575.26 : x
  2. Step 2: Convert to fraction form
    65,960.38/98,870.91 = 21,575.26/x
  3. Step 3: Cross multiply
    65,960.38x = 98,870.91 × 21,575.26
  4. Step 4: Simplify right side
    65,960.38x = 2,133,165,589.69
  5. Step 5: Solve for x
    x = 2,133,165,589.69/65,960.38
  6. Step 6: Final answer
    x = 32,340.10

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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.