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Finding the Fourth Proportional to 13,999.17, 20,999.16 and 5,232.41

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Solution

The fourth proportional to 13,999.17, 20,999.16 and 5,232.41 is: 7,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.17 : 20,999.16 = 5,232.41 : x
  2. Step 2: Convert to fraction form
    13,999.17/20,999.16 = 5,232.41/x
  3. Step 3: Cross multiply
    13,999.17x = 20,999.16 × 5,232.41
  4. Step 4: Simplify right side
    13,999.17x = 109,876,109.78
  5. Step 5: Solve for x
    x = 109,876,109.78/13,999.17
  6. Step 6: Final answer
    x = 7,848.76

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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.