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Finding the Fourth Proportional to 17,166.62, 23,700.64 and 13,179.80

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Solution

The fourth proportional to 17,166.62, 23,700.64 and 13,179.80 is: 18,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,166.62 : 23,700.64 = 13,179.80 : x
  2. Step 2: Convert to fraction form
    17,166.62/23,700.64 = 13,179.80/x
  3. Step 3: Cross multiply
    17,166.62x = 23,700.64 × 13,179.80
  4. Step 4: Simplify right side
    17,166.62x = 312,369,695.07
  5. Step 5: Solve for x
    x = 312,369,695.07/17,166.62
  6. Step 6: Final answer
    x = 18,196.34

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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.