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Finding the Fourth Proportional to 12,670.73, 17,389.08 and 11,664.71

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Solution

The fourth proportional to 12,670.73, 17,389.08 and 11,664.71 is: 16,008.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.73 : 17,389.08 = 11,664.71 : x
  2. Step 2: Convert to fraction form
    12,670.73/17,389.08 = 11,664.71/x
  3. Step 3: Cross multiply
    12,670.73x = 17,389.08 × 11,664.71
  4. Step 4: Simplify right side
    12,670.73x = 202,838,575.37
  5. Step 5: Solve for x
    x = 202,838,575.37/12,670.73
  6. Step 6: Final answer
    x = 16,008.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.