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Finding the Fourth Proportional to 60,728.42, 91,082.28 and 16,345.28

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Solution

The fourth proportional to 60,728.42, 91,082.28 and 16,345.28 is: 24,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,728.42 : 91,082.28 = 16,345.28 : x
  2. Step 2: Convert to fraction form
    60,728.42/91,082.28 = 16,345.28/x
  3. Step 3: Cross multiply
    60,728.42x = 91,082.28 × 16,345.28
  4. Step 4: Simplify right side
    60,728.42x = 1,488,765,369.64
  5. Step 5: Solve for x
    x = 1,488,765,369.64/60,728.42
  6. Step 6: Final answer
    x = 24,515.13

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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.