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Finding the Fourth Proportional to 36,897.98, 50,918.62 and 20,982.08

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Solution

The fourth proportional to 36,897.98, 50,918.62 and 20,982.08 is: 28,954.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,897.98 : 50,918.62 = 20,982.08 : x
  2. Step 2: Convert to fraction form
    36,897.98/50,918.62 = 20,982.08/x
  3. Step 3: Cross multiply
    36,897.98x = 50,918.62 × 20,982.08
  4. Step 4: Simplify right side
    36,897.98x = 1,068,378,558.33
  5. Step 5: Solve for x
    x = 1,068,378,558.33/36,897.98
  6. Step 6: Final answer
    x = 28,954.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.