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Finding the Fourth Proportional to 40,605.59, 60,920.69 and 18,413.01

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Solution

The fourth proportional to 40,605.59, 60,920.69 and 18,413.01 is: 27,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,605.59 : 60,920.69 = 18,413.01 : x
  2. Step 2: Convert to fraction form
    40,605.59/60,920.69 = 18,413.01/x
  3. Step 3: Cross multiply
    40,605.59x = 60,920.69 × 18,413.01
  4. Step 4: Simplify right side
    40,605.59x = 1,121,733,182.11
  5. Step 5: Solve for x
    x = 1,121,733,182.11/40,605.59
  6. Step 6: Final answer
    x = 27,625.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.