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Finding the Fourth Proportional to 19,841.67, 29,772.23 and 7,994.93

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Solution

The fourth proportional to 19,841.67, 29,772.23 and 7,994.93 is: 11,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,841.67 : 29,772.23 = 7,994.93 : x
  2. Step 2: Convert to fraction form
    19,841.67/29,772.23 = 7,994.93/x
  3. Step 3: Cross multiply
    19,841.67x = 29,772.23 × 7,994.93
  4. Step 4: Simplify right side
    19,841.67x = 238,026,705.96
  5. Step 5: Solve for x
    x = 238,026,705.96/19,841.67
  6. Step 6: Final answer
    x = 11,996.30

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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.