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Finding the Fourth Proportional to 18,554.34, 25,590.06 and 16,311.42

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Solution

The fourth proportional to 18,554.34, 25,590.06 and 16,311.42 is: 22,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,554.34 : 25,590.06 = 16,311.42 : x
  2. Step 2: Convert to fraction form
    18,554.34/25,590.06 = 16,311.42/x
  3. Step 3: Cross multiply
    18,554.34x = 25,590.06 × 16,311.42
  4. Step 4: Simplify right side
    18,554.34x = 417,410,216.49
  5. Step 5: Solve for x
    x = 417,410,216.49/18,554.34
  6. Step 6: Final answer
    x = 22,496.64

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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.