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Finding the Fourth Proportional to 62,649.09, 86,372.10 and 49,771.09

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Solution

The fourth proportional to 62,649.09, 86,372.10 and 49,771.09 is: 68,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,649.09 : 86,372.10 = 49,771.09 : x
  2. Step 2: Convert to fraction form
    62,649.09/86,372.10 = 49,771.09/x
  3. Step 3: Cross multiply
    62,649.09x = 86,372.10 × 49,771.09
  4. Step 4: Simplify right side
    62,649.09x = 4,298,833,562.59
  5. Step 5: Solve for x
    x = 4,298,833,562.59/62,649.09
  6. Step 6: Final answer
    x = 68,617.65

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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.