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Finding the Fourth Proportional to 52,701.67, 72,719.81 and 30,040.71

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Solution

The fourth proportional to 52,701.67, 72,719.81 and 30,040.71 is: 41,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,701.67 : 72,719.81 = 30,040.71 : x
  2. Step 2: Convert to fraction form
    52,701.67/72,719.81 = 30,040.71/x
  3. Step 3: Cross multiply
    52,701.67x = 72,719.81 × 30,040.71
  4. Step 4: Simplify right side
    52,701.67x = 2,184,554,413.21
  5. Step 5: Solve for x
    x = 2,184,554,413.21/52,701.67
  6. Step 6: Final answer
    x = 41,451.33

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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.