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Finding the Fourth Proportional to 16,082.61, 24,123.93 and 8,690.55

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Solution

The fourth proportional to 16,082.61, 24,123.93 and 8,690.55 is: 13,035.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,082.61 : 24,123.93 = 8,690.55 : x
  2. Step 2: Convert to fraction form
    16,082.61/24,123.93 = 8,690.55/x
  3. Step 3: Cross multiply
    16,082.61x = 24,123.93 × 8,690.55
  4. Step 4: Simplify right side
    16,082.61x = 209,650,219.86
  5. Step 5: Solve for x
    x = 209,650,219.86/16,082.61
  6. Step 6: Final answer
    x = 13,035.83

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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.