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Finding the Fourth Proportional to 35,295.39, 48,730.43 and 21,880.98

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Solution

The fourth proportional to 35,295.39, 48,730.43 and 21,880.98 is: 30,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,295.39 : 48,730.43 = 21,880.98 : x
  2. Step 2: Convert to fraction form
    35,295.39/48,730.43 = 21,880.98/x
  3. Step 3: Cross multiply
    35,295.39x = 48,730.43 × 21,880.98
  4. Step 4: Simplify right side
    35,295.39x = 1,066,269,454.82
  5. Step 5: Solve for x
    x = 1,066,269,454.82/35,295.39
  6. Step 6: Final answer
    x = 30,209.88

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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.