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Finding the Fourth Proportional to 16,789, 25,183.58 and 4,477

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Solution

The fourth proportional to 16,789, 25,183.58 and 4,477 is: 6,715.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,789 : 25,183.58 = 4,477 : x
  2. Step 2: Convert to fraction form
    16,789/25,183.58 = 4,477/x
  3. Step 3: Cross multiply
    16,789x = 25,183.58 × 4,477
  4. Step 4: Simplify right side
    16,789x = 112,746,887.66
  5. Step 5: Solve for x
    x = 112,746,887.66/16,789
  6. Step 6: Final answer
    x = 6,715.52

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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.