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Finding the Fourth Proportional to 16,391.70, 24,591.20 and 4,704

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Solution

The fourth proportional to 16,391.70, 24,591.20 and 4,704 is: 7,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.70 : 24,591.20 = 4,704 : x
  2. Step 2: Convert to fraction form
    16,391.70/24,591.20 = 4,704/x
  3. Step 3: Cross multiply
    16,391.70x = 24,591.20 × 4,704
  4. Step 4: Simplify right side
    16,391.70x = 115,676,981.28
  5. Step 5: Solve for x
    x = 115,676,981.28/16,391.70
  6. Step 6: Final answer
    x = 7,057.05

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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.