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Finding the Fourth Proportional to 69,309.76, 95,636.64 and 39,496

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Solution

The fourth proportional to 69,309.76, 95,636.64 and 39,496 is: 54,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.76 : 95,636.64 = 39,496 : x
  2. Step 2: Convert to fraction form
    69,309.76/95,636.64 = 39,496/x
  3. Step 3: Cross multiply
    69,309.76x = 95,636.64 × 39,496
  4. Step 4: Simplify right side
    69,309.76x = 3,777,264,733.44
  5. Step 5: Solve for x
    x = 3,777,264,733.44/69,309.76
  6. Step 6: Final answer
    x = 54,498.31

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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.