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Finding the Fourth Proportional to 58,730.80, 81,033.16 and 34,862.80

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Solution

The fourth proportional to 58,730.80, 81,033.16 and 34,862.80 is: 48,101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,730.80 : 81,033.16 = 34,862.80 : x
  2. Step 2: Convert to fraction form
    58,730.80/81,033.16 = 34,862.80/x
  3. Step 3: Cross multiply
    58,730.80x = 81,033.16 × 34,862.80
  4. Step 4: Simplify right side
    58,730.80x = 2,825,042,850.45
  5. Step 5: Solve for x
    x = 2,825,042,850.45/58,730.80
  6. Step 6: Final answer
    x = 48,101.56

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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.