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Finding the Fourth Proportional to 50,659.60, 75,982.20 and 15,602.80

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Solution

The fourth proportional to 50,659.60, 75,982.20 and 15,602.80 is: 23,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,659.60 : 75,982.20 = 15,602.80 : x
  2. Step 2: Convert to fraction form
    50,659.60/75,982.20 = 15,602.80/x
  3. Step 3: Cross multiply
    50,659.60x = 75,982.20 × 15,602.80
  4. Step 4: Simplify right side
    50,659.60x = 1,185,535,070.16
  5. Step 5: Solve for x
    x = 1,185,535,070.16/50,659.60
  6. Step 6: Final answer
    x = 23,401.98

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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.