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Finding the Fourth Proportional to 55,343.60, 83,017.99 and 17,906.60

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Solution

The fourth proportional to 55,343.60, 83,017.99 and 17,906.60 is: 26,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,343.60 : 83,017.99 = 17,906.60 : x
  2. Step 2: Convert to fraction form
    55,343.60/83,017.99 = 17,906.60/x
  3. Step 3: Cross multiply
    55,343.60x = 83,017.99 × 17,906.60
  4. Step 4: Simplify right side
    55,343.60x = 1,486,570,192.05
  5. Step 5: Solve for x
    x = 1,486,570,192.05/55,343.60
  6. Step 6: Final answer
    x = 26,860.74

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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.