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Finding the Fourth Proportional to 19,796.16, 29,699.41 and 8,705.04

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Solution

The fourth proportional to 19,796.16, 29,699.41 and 8,705.04 is: 13,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,796.16 : 29,699.41 = 8,705.04 : x
  2. Step 2: Convert to fraction form
    19,796.16/29,699.41 = 8,705.04/x
  3. Step 3: Cross multiply
    19,796.16x = 29,699.41 × 8,705.04
  4. Step 4: Simplify right side
    19,796.16x = 258,534,552.03
  5. Step 5: Solve for x
    x = 258,534,552.03/19,796.16
  6. Step 6: Final answer
    x = 13,059.83

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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.