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Finding the Fourth Proportional to 52,817.74, 79,224.99 and 21,629.50

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Solution

The fourth proportional to 52,817.74, 79,224.99 and 21,629.50 is: 32,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,817.74 : 79,224.99 = 21,629.50 : x
  2. Step 2: Convert to fraction form
    52,817.74/79,224.99 = 21,629.50/x
  3. Step 3: Cross multiply
    52,817.74x = 79,224.99 × 21,629.50
  4. Step 4: Simplify right side
    52,817.74x = 1,713,596,921.21
  5. Step 5: Solve for x
    x = 1,713,596,921.21/52,817.74
  6. Step 6: Final answer
    x = 32,443.59

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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.