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Finding the Fourth Proportional to 14,105.81, 19,465.91 and 7,732.43

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Solution

The fourth proportional to 14,105.81, 19,465.91 and 7,732.43 is: 10,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.81 : 19,465.91 = 7,732.43 : x
  2. Step 2: Convert to fraction form
    14,105.81/19,465.91 = 7,732.43/x
  3. Step 3: Cross multiply
    14,105.81x = 19,465.91 × 7,732.43
  4. Step 4: Simplify right side
    14,105.81x = 150,518,650.47
  5. Step 5: Solve for x
    x = 150,518,650.47/14,105.81
  6. Step 6: Final answer
    x = 10,670.68

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