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Finding the Fourth Proportional to 65,084.40, 89,816.04 and 36,790.02

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Solution

The fourth proportional to 65,084.40, 89,816.04 and 36,790.02 is: 50,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,084.40 : 89,816.04 = 36,790.02 : x
  2. Step 2: Convert to fraction form
    65,084.40/89,816.04 = 36,790.02/x
  3. Step 3: Cross multiply
    65,084.40x = 89,816.04 × 36,790.02
  4. Step 4: Simplify right side
    65,084.40x = 3,304,333,907.92
  5. Step 5: Solve for x
    x = 3,304,333,907.92/65,084.40
  6. Step 6: Final answer
    x = 50,769.98

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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.