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Finding the Fourth Proportional to 53,465.70, 80,112.15 and 33,708.90

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Solution

The fourth proportional to 53,465.70, 80,112.15 and 33,708.90 is: 50,508.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,465.70 : 80,112.15 = 33,708.90 : x
  2. Step 2: Convert to fraction form
    53,465.70/80,112.15 = 33,708.90/x
  3. Step 3: Cross multiply
    53,465.70x = 80,112.15 × 33,708.90
  4. Step 4: Simplify right side
    53,465.70x = 2,700,492,453.14
  5. Step 5: Solve for x
    x = 2,700,492,453.14/53,465.70
  6. Step 6: Final answer
    x = 50,508.88

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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.