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Finding the Fourth Proportional to 62,406.95, 93,625.28 and 20,287.22

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Solution

The fourth proportional to 62,406.95, 93,625.28 and 20,287.22 is: 30,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,406.95 : 93,625.28 = 20,287.22 : x
  2. Step 2: Convert to fraction form
    62,406.95/93,625.28 = 20,287.22/x
  3. Step 3: Cross multiply
    62,406.95x = 93,625.28 × 20,287.22
  4. Step 4: Simplify right side
    62,406.95x = 1,899,396,551.49
  5. Step 5: Solve for x
    x = 1,899,396,551.49/62,406.95
  6. Step 6: Final answer
    x = 30,435.66

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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.