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Finding the Fourth Proportional to 19,649.65, 29,486.63 and 7,962.97

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Solution

The fourth proportional to 19,649.65, 29,486.63 and 7,962.97 is: 11,949.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,649.65 : 29,486.63 = 7,962.97 : x
  2. Step 2: Convert to fraction form
    19,649.65/29,486.63 = 7,962.97/x
  3. Step 3: Cross multiply
    19,649.65x = 29,486.63 × 7,962.97
  4. Step 4: Simplify right side
    19,649.65x = 234,801,150.09
  5. Step 5: Solve for x
    x = 234,801,150.09/19,649.65
  6. Step 6: Final answer
    x = 11,949.38

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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.