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Finding the Fourth Proportional to 15,999.72, 23,968.86 and 12,473.25

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Solution

The fourth proportional to 15,999.72, 23,968.86 and 12,473.25 is: 18,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.72 : 23,968.86 = 12,473.25 : x
  2. Step 2: Convert to fraction form
    15,999.72/23,968.86 = 12,473.25/x
  3. Step 3: Cross multiply
    15,999.72x = 23,968.86 × 12,473.25
  4. Step 4: Simplify right side
    15,999.72x = 298,969,583.00
  5. Step 5: Solve for x
    x = 298,969,583.00/15,999.72
  6. Step 6: Final answer
    x = 18,685.93

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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.