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Finding the Fourth Proportional to 14,487.92, 21,723.72 and 4,624.88

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Solution

The fourth proportional to 14,487.92, 21,723.72 and 4,624.88 is: 6,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.92 : 21,723.72 = 4,624.88 : x
  2. Step 2: Convert to fraction form
    14,487.92/21,723.72 = 4,624.88/x
  3. Step 3: Cross multiply
    14,487.92x = 21,723.72 × 4,624.88
  4. Step 4: Simplify right side
    14,487.92x = 100,469,598.15
  5. Step 5: Solve for x
    x = 100,469,598.15/14,487.92
  6. Step 6: Final answer
    x = 6,934.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.