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Finding the Fourth Proportional to 64,776.36, 89,413.77 and 37,927.50

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Solution

The fourth proportional to 64,776.36, 89,413.77 and 37,927.50 is: 52,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,776.36 : 89,413.77 = 37,927.50 : x
  2. Step 2: Convert to fraction form
    64,776.36/89,413.77 = 37,927.50/x
  3. Step 3: Cross multiply
    64,776.36x = 89,413.77 × 37,927.50
  4. Step 4: Simplify right side
    64,776.36x = 3,391,240,761.68
  5. Step 5: Solve for x
    x = 3,391,240,761.68/64,776.36
  6. Step 6: Final answer
    x = 52,353.06

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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.