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Finding the Fourth Proportional to 62,968.86, 86,887.80 and 36,112.50

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Solution

The fourth proportional to 62,968.86, 86,887.80 and 36,112.50 is: 49,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,968.86 : 86,887.80 = 36,112.50 : x
  2. Step 2: Convert to fraction form
    62,968.86/86,887.80 = 36,112.50/x
  3. Step 3: Cross multiply
    62,968.86x = 86,887.80 × 36,112.50
  4. Step 4: Simplify right side
    62,968.86x = 3,137,735,677.50
  5. Step 5: Solve for x
    x = 3,137,735,677.50/62,968.86
  6. Step 6: Final answer
    x = 49,829.96

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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.