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Finding the Fourth Proportional to 52,808.90, 79,213.28 and 17,773.16

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Solution

The fourth proportional to 52,808.90, 79,213.28 and 17,773.16 is: 26,659.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,808.90 : 79,213.28 = 17,773.16 : x
  2. Step 2: Convert to fraction form
    52,808.90/79,213.28 = 17,773.16/x
  3. Step 3: Cross multiply
    52,808.90x = 79,213.28 × 17,773.16
  4. Step 4: Simplify right side
    52,808.90x = 1,407,869,814.63
  5. Step 5: Solve for x
    x = 1,407,869,814.63/52,808.90
  6. Step 6: Final answer
    x = 26,659.71

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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.