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Finding the Fourth Proportional to 34,880.96, 48,135.16 and 18,965.81

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Solution

The fourth proportional to 34,880.96, 48,135.16 and 18,965.81 is: 26,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,880.96 : 48,135.16 = 18,965.81 : x
  2. Step 2: Convert to fraction form
    34,880.96/48,135.16 = 18,965.81/x
  3. Step 3: Cross multiply
    34,880.96x = 48,135.16 × 18,965.81
  4. Step 4: Simplify right side
    34,880.96x = 912,922,442.92
  5. Step 5: Solve for x
    x = 912,922,442.92/34,880.96
  6. Step 6: Final answer
    x = 26,172.51

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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.