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Finding the Fourth Proportional to 62,578.60, 86,360.64 and 34,284.31

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Solution

The fourth proportional to 62,578.60, 86,360.64 and 34,284.31 is: 47,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,578.60 : 86,360.64 = 34,284.31 : x
  2. Step 2: Convert to fraction form
    62,578.60/86,360.64 = 34,284.31/x
  3. Step 3: Cross multiply
    62,578.60x = 86,360.64 × 34,284.31
  4. Step 4: Simplify right side
    62,578.60x = 2,960,814,953.56
  5. Step 5: Solve for x
    x = 2,960,814,953.56/62,578.60
  6. Step 6: Final answer
    x = 47,313.54

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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.