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Finding the Fourth Proportional to 18,900.27, 26,082.54 and 10,516.77

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Solution

The fourth proportional to 18,900.27, 26,082.54 and 10,516.77 is: 14,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.27 : 26,082.54 = 10,516.77 : x
  2. Step 2: Convert to fraction form
    18,900.27/26,082.54 = 10,516.77/x
  3. Step 3: Cross multiply
    18,900.27x = 26,082.54 × 10,516.77
  4. Step 4: Simplify right side
    18,900.27x = 274,304,074.20
  5. Step 5: Solve for x
    x = 274,304,074.20/18,900.27
  6. Step 6: Final answer
    x = 14,513.24

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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.