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Finding the Fourth Proportional to 30,480.59, 41,969.76 and 26,682.50

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Solution

The fourth proportional to 30,480.59, 41,969.76 and 26,682.50 is: 36,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.59 : 41,969.76 = 26,682.50 : x
  2. Step 2: Convert to fraction form
    30,480.59/41,969.76 = 26,682.50/x
  3. Step 3: Cross multiply
    30,480.59x = 41,969.76 × 26,682.50
  4. Step 4: Simplify right side
    30,480.59x = 1,119,858,121.20
  5. Step 5: Solve for x
    x = 1,119,858,121.20/30,480.59
  6. Step 6: Final answer
    x = 36,740.04

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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.