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Finding the Fourth Proportional to 41,699.84, 62,559.68 and 13,620.11

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Solution

The fourth proportional to 41,699.84, 62,559.68 and 13,620.11 is: 20,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,699.84 : 62,559.68 = 13,620.11 : x
  2. Step 2: Convert to fraction form
    41,699.84/62,559.68 = 13,620.11/x
  3. Step 3: Cross multiply
    41,699.84x = 62,559.68 × 13,620.11
  4. Step 4: Simplify right side
    41,699.84x = 852,069,342.27
  5. Step 5: Solve for x
    x = 852,069,342.27/41,699.84
  6. Step 6: Final answer
    x = 20,433.40

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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.