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Finding the Fourth Proportional to 32,920.43, 45,429.87 and 17,812.76

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Solution

The fourth proportional to 32,920.43, 45,429.87 and 17,812.76 is: 24,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,920.43 : 45,429.87 = 17,812.76 : x
  2. Step 2: Convert to fraction form
    32,920.43/45,429.87 = 17,812.76/x
  3. Step 3: Cross multiply
    32,920.43x = 45,429.87 × 17,812.76
  4. Step 4: Simplify right side
    32,920.43x = 809,231,282.08
  5. Step 5: Solve for x
    x = 809,231,282.08/32,920.43
  6. Step 6: Final answer
    x = 24,581.43

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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.