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Finding the Fourth Proportional to 14,952.85, 20,635.18 and 8,238.38

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Solution

The fourth proportional to 14,952.85, 20,635.18 and 8,238.38 is: 11,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,952.85 : 20,635.18 = 8,238.38 : x
  2. Step 2: Convert to fraction form
    14,952.85/20,635.18 = 8,238.38/x
  3. Step 3: Cross multiply
    14,952.85x = 20,635.18 × 8,238.38
  4. Step 4: Simplify right side
    14,952.85x = 170,000,527.72
  5. Step 5: Solve for x
    x = 170,000,527.72/14,952.85
  6. Step 6: Final answer
    x = 11,369.10

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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.