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Finding the Fourth Proportional to 65,643.90, 98,514.45 and 26,229.30

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Solution

The fourth proportional to 65,643.90, 98,514.45 and 26,229.30 is: 39,363.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,643.90 : 98,514.45 = 26,229.30 : x
  2. Step 2: Convert to fraction form
    65,643.90/98,514.45 = 26,229.30/x
  3. Step 3: Cross multiply
    65,643.90x = 98,514.45 × 26,229.30
  4. Step 4: Simplify right side
    65,643.90x = 2,583,965,063.39
  5. Step 5: Solve for x
    x = 2,583,965,063.39/65,643.90
  6. Step 6: Final answer
    x = 39,363.37

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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.