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Finding the Fourth Proportional to 19,999.88, 27,602.18 and 12,046.12

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Solution

The fourth proportional to 19,999.88, 27,602.18 and 12,046.12 is: 16,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.88 : 27,602.18 = 12,046.12 : x
  2. Step 2: Convert to fraction form
    19,999.88/27,602.18 = 12,046.12/x
  3. Step 3: Cross multiply
    19,999.88x = 27,602.18 × 12,046.12
  4. Step 4: Simplify right side
    19,999.88x = 332,499,172.54
  5. Step 5: Solve for x
    x = 332,499,172.54/19,999.88
  6. Step 6: Final answer
    x = 16,625.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.