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Finding the Fourth Proportional to 62,859.80, 86,748.24 and 34,181.48

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Solution

The fourth proportional to 62,859.80, 86,748.24 and 34,181.48 is: 47,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,859.80 : 86,748.24 = 34,181.48 : x
  2. Step 2: Convert to fraction form
    62,859.80/86,748.24 = 34,181.48/x
  3. Step 3: Cross multiply
    62,859.80x = 86,748.24 × 34,181.48
  4. Step 4: Simplify right side
    62,859.80x = 2,965,183,230.60
  5. Step 5: Solve for x
    x = 2,965,183,230.60/62,859.80
  6. Step 6: Final answer
    x = 47,171.38

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1.5x scale

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.