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Finding the Fourth Proportional to 62,418.71, 86,137.81 and 34,124.40

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Solution

The fourth proportional to 62,418.71, 86,137.81 and 34,124.40 is: 47,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,418.71 : 86,137.81 = 34,124.40 : x
  2. Step 2: Convert to fraction form
    62,418.71/86,137.81 = 34,124.40/x
  3. Step 3: Cross multiply
    62,418.71x = 86,137.81 × 34,124.40
  4. Step 4: Simplify right side
    62,418.71x = 2,939,400,998.25
  5. Step 5: Solve for x
    x = 2,939,400,998.25/62,418.71
  6. Step 6: Final answer
    x = 47,091.66

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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.