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Finding the Fourth Proportional to 62,997.96, 86,933.94 and 39,124.14

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Solution

The fourth proportional to 62,997.96, 86,933.94 and 39,124.14 is: 53,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,997.96 : 86,933.94 = 39,124.14 : x
  2. Step 2: Convert to fraction form
    62,997.96/86,933.94 = 39,124.14/x
  3. Step 3: Cross multiply
    62,997.96x = 86,933.94 × 39,124.14
  4. Step 4: Simplify right side
    62,997.96x = 3,401,215,639.31
  5. Step 5: Solve for x
    x = 3,401,215,639.31/62,997.96
  6. Step 6: Final answer
    x = 53,989.30

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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.