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Finding the Fourth Proportional to 19,796.67, 29,699.32 and 6,648.69

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Solution

The fourth proportional to 19,796.67, 29,699.32 and 6,648.69 is: 9,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,796.67 : 29,699.32 = 6,648.69 : x
  2. Step 2: Convert to fraction form
    19,796.67/29,699.32 = 6,648.69/x
  3. Step 3: Cross multiply
    19,796.67x = 29,699.32 × 6,648.69
  4. Step 4: Simplify right side
    19,796.67x = 197,461,555.27
  5. Step 5: Solve for x
    x = 197,461,555.27/19,796.67
  6. Step 6: Final answer
    x = 9,974.49

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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.