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Finding the Fourth Proportional to 51,109.92, 76,664.72 and 14,173.92

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Solution

The fourth proportional to 51,109.92, 76,664.72 and 14,173.92 is: 21,260.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.92 : 76,664.72 = 14,173.92 : x
  2. Step 2: Convert to fraction form
    51,109.92/76,664.72 = 14,173.92/x
  3. Step 3: Cross multiply
    51,109.92x = 76,664.72 × 14,173.92
  4. Step 4: Simplify right side
    51,109.92x = 1,086,639,608.10
  5. Step 5: Solve for x
    x = 1,086,639,608.10/51,109.92
  6. Step 6: Final answer
    x = 21,260.84

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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.