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Finding the Fourth Proportional to 63,996.72, 96,005.64 and 19,619.04

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Solution

The fourth proportional to 63,996.72, 96,005.64 and 19,619.04 is: 29,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,996.72 : 96,005.64 = 19,619.04 : x
  2. Step 2: Convert to fraction form
    63,996.72/96,005.64 = 19,619.04/x
  3. Step 3: Cross multiply
    63,996.72x = 96,005.64 × 19,619.04
  4. Step 4: Simplify right side
    63,996.72x = 1,883,538,491.39
  5. Step 5: Solve for x
    x = 1,883,538,491.39/63,996.72
  6. Step 6: Final answer
    x = 29,431.80

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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.