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Finding the Fourth Proportional to 19,996.40, 29,994.62 and 14,805.92

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Solution

The fourth proportional to 19,996.40, 29,994.62 and 14,805.92 is: 22,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.40 : 29,994.62 = 14,805.92 : x
  2. Step 2: Convert to fraction form
    19,996.40/29,994.62 = 14,805.92/x
  3. Step 3: Cross multiply
    19,996.40x = 29,994.62 × 14,805.92
  4. Step 4: Simplify right side
    19,996.40x = 444,097,720.15
  5. Step 5: Solve for x
    x = 444,097,720.15/19,996.40
  6. Step 6: Final answer
    x = 22,208.89

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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.