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Finding the Fourth Proportional to 62,664.48, 86,493.24 and 38,777.58

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Solution

The fourth proportional to 62,664.48, 86,493.24 and 38,777.58 is: 53,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,664.48 : 86,493.24 = 38,777.58 : x
  2. Step 2: Convert to fraction form
    62,664.48/86,493.24 = 38,777.58/x
  3. Step 3: Cross multiply
    62,664.48x = 86,493.24 × 38,777.58
  4. Step 4: Simplify right side
    62,664.48x = 3,353,998,533.56
  5. Step 5: Solve for x
    x = 3,353,998,533.56/62,664.48
  6. Step 6: Final answer
    x = 53,523.12

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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.