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Finding the Fourth Proportional to 14,951.52, 20,623.68 and 9,910.08

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Solution

The fourth proportional to 14,951.52, 20,623.68 and 9,910.08 is: 13,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.52 : 20,623.68 = 9,910.08 : x
  2. Step 2: Convert to fraction form
    14,951.52/20,623.68 = 9,910.08/x
  3. Step 3: Cross multiply
    14,951.52x = 20,623.68 × 9,910.08
  4. Step 4: Simplify right side
    14,951.52x = 204,382,318.69
  5. Step 5: Solve for x
    x = 204,382,318.69/14,951.52
  6. Step 6: Final answer
    x = 13,669.67

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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.