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Finding the Fourth Proportional to 62,421.96, 93,632 and 20,303.96

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Solution

The fourth proportional to 62,421.96, 93,632 and 20,303.96 is: 30,455.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.96 : 93,632 = 20,303.96 : x
  2. Step 2: Convert to fraction form
    62,421.96/93,632 = 20,303.96/x
  3. Step 3: Cross multiply
    62,421.96x = 93,632 × 20,303.96
  4. Step 4: Simplify right side
    62,421.96x = 1,901,100,382.72
  5. Step 5: Solve for x
    x = 1,901,100,382.72/62,421.96
  6. Step 6: Final answer
    x = 30,455.63

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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.