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Finding the Fourth Proportional to 43,266.65, 64,899.96 and 18,300.21

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Solution

The fourth proportional to 43,266.65, 64,899.96 and 18,300.21 is: 27,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,266.65 : 64,899.96 = 18,300.21 : x
  2. Step 2: Convert to fraction form
    43,266.65/64,899.96 = 18,300.21/x
  3. Step 3: Cross multiply
    43,266.65x = 64,899.96 × 18,300.21
  4. Step 4: Simplify right side
    43,266.65x = 1,187,682,896.99
  5. Step 5: Solve for x
    x = 1,187,682,896.99/43,266.65
  6. Step 6: Final answer
    x = 27,450.31

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1.5x scale

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.