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Finding the Fourth Proportional to 12,046.68, 16,629.66 and 8,646.12

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Solution

The fourth proportional to 12,046.68, 16,629.66 and 8,646.12 is: 11,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,046.68 : 16,629.66 = 8,646.12 : x
  2. Step 2: Convert to fraction form
    12,046.68/16,629.66 = 8,646.12/x
  3. Step 3: Cross multiply
    12,046.68x = 16,629.66 × 8,646.12
  4. Step 4: Simplify right side
    12,046.68x = 143,782,035.92
  5. Step 5: Solve for x
    x = 143,782,035.92/12,046.68
  6. Step 6: Final answer
    x = 11,935.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.