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Finding the Fourth Proportional to 57,453.10, 86,180.09 and 20,013.11

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Solution

The fourth proportional to 57,453.10, 86,180.09 and 20,013.11 is: 30,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,453.10 : 86,180.09 = 20,013.11 : x
  2. Step 2: Convert to fraction form
    57,453.10/86,180.09 = 20,013.11/x
  3. Step 3: Cross multiply
    57,453.10x = 86,180.09 × 20,013.11
  4. Step 4: Simplify right side
    57,453.10x = 1,724,731,736.36
  5. Step 5: Solve for x
    x = 1,724,731,736.36/57,453.10
  6. Step 6: Final answer
    x = 30,019.82

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1.5x scale

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.