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Finding the Fourth Proportional to 30,009.96, 41,413.14 and 16,581.11

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Solution

The fourth proportional to 30,009.96, 41,413.14 and 16,581.11 is: 22,881.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,009.96 : 41,413.14 = 16,581.11 : x
  2. Step 2: Convert to fraction form
    30,009.96/41,413.14 = 16,581.11/x
  3. Step 3: Cross multiply
    30,009.96x = 41,413.14 × 16,581.11
  4. Step 4: Simplify right side
    30,009.96x = 686,675,622.72
  5. Step 5: Solve for x
    x = 686,675,622.72/30,009.96
  6. Step 6: Final answer
    x = 22,881.59

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1.5x scale

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.