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Finding the Fourth Proportional to 43,322.87, 64,836.45 and 36,310.80

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Solution

The fourth proportional to 43,322.87, 64,836.45 and 36,310.80 is: 54,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,322.87 : 64,836.45 = 36,310.80 : x
  2. Step 2: Convert to fraction form
    43,322.87/64,836.45 = 36,310.80/x
  3. Step 3: Cross multiply
    43,322.87x = 64,836.45 × 36,310.80
  4. Step 4: Simplify right side
    43,322.87x = 2,354,263,368.66
  5. Step 5: Solve for x
    x = 2,354,263,368.66/43,322.87
  6. Step 6: Final answer
    x = 54,342.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.