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Finding the Fourth Proportional to 18,306.98, 25,264.05 and 10,349.67

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Solution

The fourth proportional to 18,306.98, 25,264.05 and 10,349.67 is: 14,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.98 : 25,264.05 = 10,349.67 : x
  2. Step 2: Convert to fraction form
    18,306.98/25,264.05 = 10,349.67/x
  3. Step 3: Cross multiply
    18,306.98x = 25,264.05 × 10,349.67
  4. Step 4: Simplify right side
    18,306.98x = 261,474,580.36
  5. Step 5: Solve for x
    x = 261,474,580.36/18,306.98
  6. Step 6: Final answer
    x = 14,282.78

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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.