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Finding the Fourth Proportional to 53,183.88, 79,732.76 and 19,899.16

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Solution

The fourth proportional to 53,183.88, 79,732.76 and 19,899.16 is: 29,832.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,183.88 : 79,732.76 = 19,899.16 : x
  2. Step 2: Convert to fraction form
    53,183.88/79,732.76 = 19,899.16/x
  3. Step 3: Cross multiply
    53,183.88x = 79,732.76 × 19,899.16
  4. Step 4: Simplify right side
    53,183.88x = 1,586,614,649.65
  5. Step 5: Solve for x
    x = 1,586,614,649.65/53,183.88
  6. Step 6: Final answer
    x = 29,832.62

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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.