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Finding the Fourth Proportional to 15,912.74, 23,851.74 and 7,996.26

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Solution

The fourth proportional to 15,912.74, 23,851.74 and 7,996.26 is: 11,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.74 : 23,851.74 = 7,996.26 : x
  2. Step 2: Convert to fraction form
    15,912.74/23,851.74 = 7,996.26/x
  3. Step 3: Cross multiply
    15,912.74x = 23,851.74 × 7,996.26
  4. Step 4: Simplify right side
    15,912.74x = 190,724,714.49
  5. Step 5: Solve for x
    x = 190,724,714.49/15,912.74
  6. Step 6: Final answer
    x = 11,985.66

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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.