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Finding the Fourth Proportional to 36,888.52, 50,902.62 and 20,972.08

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Solution

The fourth proportional to 36,888.52, 50,902.62 and 20,972.08 is: 28,939.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,888.52 : 50,902.62 = 20,972.08 : x
  2. Step 2: Convert to fraction form
    36,888.52/50,902.62 = 20,972.08/x
  3. Step 3: Cross multiply
    36,888.52x = 50,902.62 × 20,972.08
  4. Step 4: Simplify right side
    36,888.52x = 1,067,533,818.85
  5. Step 5: Solve for x
    x = 1,067,533,818.85/36,888.52
  6. Step 6: Final answer
    x = 28,939.46

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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.