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Finding the Fourth Proportional to 40,082.88, 60,138.63 and 17,894.28

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Solution

The fourth proportional to 40,082.88, 60,138.63 and 17,894.28 is: 26,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,082.88 : 60,138.63 = 17,894.28 : x
  2. Step 2: Convert to fraction form
    40,082.88/60,138.63 = 17,894.28/x
  3. Step 3: Cross multiply
    40,082.88x = 60,138.63 × 17,894.28
  4. Step 4: Simplify right side
    40,082.88x = 1,076,137,484.04
  5. Step 5: Solve for x
    x = 1,076,137,484.04/40,082.88
  6. Step 6: Final answer
    x = 26,847.81

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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.