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Finding the Fourth Proportional to 18,966.87, 26,174.72 and 10,469.12

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Solution

The fourth proportional to 18,966.87, 26,174.72 and 10,469.12 is: 14,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.87 : 26,174.72 = 10,469.12 : x
  2. Step 2: Convert to fraction form
    18,966.87/26,174.72 = 10,469.12/x
  3. Step 3: Cross multiply
    18,966.87x = 26,174.72 × 10,469.12
  4. Step 4: Simplify right side
    18,966.87x = 274,026,101.43
  5. Step 5: Solve for x
    x = 274,026,101.43/18,966.87
  6. Step 6: Final answer
    x = 14,447.62

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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.