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Finding the Fourth Proportional to 17,620.71, 24,317.70 and 11,641.89

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Solution

The fourth proportional to 17,620.71, 24,317.70 and 11,641.89 is: 16,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.71 : 24,317.70 = 11,641.89 : x
  2. Step 2: Convert to fraction form
    17,620.71/24,317.70 = 11,641.89/x
  3. Step 3: Cross multiply
    17,620.71x = 24,317.70 × 11,641.89
  4. Step 4: Simplify right side
    17,620.71x = 283,103,988.45
  5. Step 5: Solve for x
    x = 283,103,988.45/17,620.71
  6. Step 6: Final answer
    x = 16,066.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.