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Finding the Fourth Proportional to 43,903.30, 65,855.12 and 10,623.31

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Solution

The fourth proportional to 43,903.30, 65,855.12 and 10,623.31 is: 15,935.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,903.30 : 65,855.12 = 10,623.31 : x
  2. Step 2: Convert to fraction form
    43,903.30/65,855.12 = 10,623.31/x
  3. Step 3: Cross multiply
    43,903.30x = 65,855.12 × 10,623.31
  4. Step 4: Simplify right side
    43,903.30x = 699,599,384.05
  5. Step 5: Solve for x
    x = 699,599,384.05/43,903.30
  6. Step 6: Final answer
    x = 15,935.01

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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.