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Finding the Fourth Proportional to 14,913.72, 20,575.08 and 8,624.88

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Solution

The fourth proportional to 14,913.72, 20,575.08 and 8,624.88 is: 11,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.72 : 20,575.08 = 8,624.88 : x
  2. Step 2: Convert to fraction form
    14,913.72/20,575.08 = 8,624.88/x
  3. Step 3: Cross multiply
    14,913.72x = 20,575.08 × 8,624.88
  4. Step 4: Simplify right side
    14,913.72x = 177,457,595.99
  5. Step 5: Solve for x
    x = 177,457,595.99/14,913.72
  6. Step 6: Final answer
    x = 11,898.95

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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.