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Finding the Fourth Proportional to 57,996.80, 86,800.80 and 50,998.40

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Solution

The fourth proportional to 57,996.80, 86,800.80 and 50,998.40 is: 76,326.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,996.80 : 86,800.80 = 50,998.40 : x
  2. Step 2: Convert to fraction form
    57,996.80/86,800.80 = 50,998.40/x
  3. Step 3: Cross multiply
    57,996.80x = 86,800.80 × 50,998.40
  4. Step 4: Simplify right side
    57,996.80x = 4,426,701,918.72
  5. Step 5: Solve for x
    x = 4,426,701,918.72/57,996.80
  6. Step 6: Final answer
    x = 76,326.66

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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.