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Finding the Fourth Proportional to 15,999.09, 23,999.00 and 12,714.50

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Solution

The fourth proportional to 15,999.09, 23,999.00 and 12,714.50 is: 19,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.09 : 23,999.00 = 12,714.50 : x
  2. Step 2: Convert to fraction form
    15,999.09/23,999.00 = 12,714.50/x
  3. Step 3: Cross multiply
    15,999.09x = 23,999.00 × 12,714.50
  4. Step 4: Simplify right side
    15,999.09x = 305,135,101.93
  5. Step 5: Solve for x
    x = 305,135,101.93/15,999.09
  6. Step 6: Final answer
    x = 19,072.03

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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.