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Finding the Fourth Proportional to 15,997.21, 23,999.51 and 4,905.52

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Solution

The fourth proportional to 15,997.21, 23,999.51 and 4,905.52 is: 7,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.21 : 23,999.51 = 4,905.52 : x
  2. Step 2: Convert to fraction form
    15,997.21/23,999.51 = 4,905.52/x
  3. Step 3: Cross multiply
    15,997.21x = 23,999.51 × 4,905.52
  4. Step 4: Simplify right side
    15,997.21x = 117,730,076.30
  5. Step 5: Solve for x
    x = 117,730,076.30/15,997.21
  6. Step 6: Final answer
    x = 7,359.41

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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.