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Finding the Fourth Proportional to 14,659.72, 21,989.58 and 9,738.96

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Solution

The fourth proportional to 14,659.72, 21,989.58 and 9,738.96 is: 14,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.72 : 21,989.58 = 9,738.96 : x
  2. Step 2: Convert to fraction form
    14,659.72/21,989.58 = 9,738.96/x
  3. Step 3: Cross multiply
    14,659.72x = 21,989.58 × 9,738.96
  4. Step 4: Simplify right side
    14,659.72x = 214,155,640.04
  5. Step 5: Solve for x
    x = 214,155,640.04/14,659.72
  6. Step 6: Final answer
    x = 14,608.44

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Similar ratio
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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.