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Finding the Fourth Proportional to 59,418.70, 81,990 and 35,536.66

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Solution

The fourth proportional to 59,418.70, 81,990 and 35,536.66 is: 49,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,418.70 : 81,990 = 35,536.66 : x
  2. Step 2: Convert to fraction form
    59,418.70/81,990 = 35,536.66/x
  3. Step 3: Cross multiply
    59,418.70x = 81,990 × 35,536.66
  4. Step 4: Simplify right side
    59,418.70x = 2,913,650,753.40
  5. Step 5: Solve for x
    x = 2,913,650,753.40/59,418.70
  6. Step 6: Final answer
    x = 49,035.92

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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.