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Finding the Fourth Proportional to 44,699.81, 67,049.71 and 11,419.95

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Solution

The fourth proportional to 44,699.81, 67,049.71 and 11,419.95 is: 17,129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,699.81 : 67,049.71 = 11,419.95 : x
  2. Step 2: Convert to fraction form
    44,699.81/67,049.71 = 11,419.95/x
  3. Step 3: Cross multiply
    44,699.81x = 67,049.71 × 11,419.95
  4. Step 4: Simplify right side
    44,699.81x = 765,704,335.71
  5. Step 5: Solve for x
    x = 765,704,335.71/44,699.81
  6. Step 6: Final answer
    x = 17,129.92

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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.