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Finding the Fourth Proportional to 60,728.30, 91,082.11 and 16,345.16

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Solution

The fourth proportional to 60,728.30, 91,082.11 and 16,345.16 is: 24,514.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.30 : 91,082.11 = 16,345.16 : x
  2. Step 2: Convert to fraction form
    60,728.30/91,082.11 = 16,345.16/x
  3. Step 3: Cross multiply
    60,728.30x = 91,082.11 × 16,345.16
  4. Step 4: Simplify right side
    60,728.30x = 1,488,751,661.09
  5. Step 5: Solve for x
    x = 1,488,751,661.09/60,728.30
  6. Step 6: Final answer
    x = 24,514.96

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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.