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Finding the Fourth Proportional to 64,706.48, 89,291.54 and 36,413.99

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Solution

The fourth proportional to 64,706.48, 89,291.54 and 36,413.99 is: 50,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.48 : 89,291.54 = 36,413.99 : x
  2. Step 2: Convert to fraction form
    64,706.48/89,291.54 = 36,413.99/x
  3. Step 3: Cross multiply
    64,706.48x = 89,291.54 × 36,413.99
  4. Step 4: Simplify right side
    64,706.48x = 3,251,461,062.57
  5. Step 5: Solve for x
    x = 3,251,461,062.57/64,706.48
  6. Step 6: Final answer
    x = 50,249.39

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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.