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Finding the Fourth Proportional to 62,468.74, 86,235.20 and 39,838.56

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Solution

The fourth proportional to 62,468.74, 86,235.20 and 39,838.56 is: 54,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,468.74 : 86,235.20 = 39,838.56 : x
  2. Step 2: Convert to fraction form
    62,468.74/86,235.20 = 39,838.56/x
  3. Step 3: Cross multiply
    62,468.74x = 86,235.20 × 39,838.56
  4. Step 4: Simplify right side
    62,468.74x = 3,435,486,189.31
  5. Step 5: Solve for x
    x = 3,435,486,189.31/62,468.74
  6. Step 6: Final answer
    x = 54,995.29

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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.