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Finding the Fourth Proportional to 65,080.26, 89,812.80 and 36,787.77

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Solution

The fourth proportional to 65,080.26, 89,812.80 and 36,787.77 is: 50,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,080.26 : 89,812.80 = 36,787.77 : x
  2. Step 2: Convert to fraction form
    65,080.26/89,812.80 = 36,787.77/x
  3. Step 3: Cross multiply
    65,080.26x = 89,812.80 × 36,787.77
  4. Step 4: Simplify right side
    65,080.26x = 3,304,012,629.46
  5. Step 5: Solve for x
    x = 3,304,012,629.46/65,080.26
  6. Step 6: Final answer
    x = 50,768.28

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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.