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Finding the Fourth Proportional to 62,418.84, 86,138.32 and 34,124.48

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Solution

The fourth proportional to 62,418.84, 86,138.32 and 34,124.48 is: 47,091.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,418.84 : 86,138.32 = 34,124.48 : x
  2. Step 2: Convert to fraction form
    62,418.84/86,138.32 = 34,124.48/x
  3. Step 3: Cross multiply
    62,418.84x = 86,138.32 × 34,124.48
  4. Step 4: Simplify right side
    62,418.84x = 2,939,425,378.07
  5. Step 5: Solve for x
    x = 2,939,425,378.07/62,418.84
  6. Step 6: Final answer
    x = 47,091.96

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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.