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Finding the Fourth Proportional to 37,891.95, 52,291.15 and 20,896.80

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Solution

The fourth proportional to 37,891.95, 52,291.15 and 20,896.80 is: 28,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,891.95 : 52,291.15 = 20,896.80 : x
  2. Step 2: Convert to fraction form
    37,891.95/52,291.15 = 20,896.80/x
  3. Step 3: Cross multiply
    37,891.95x = 52,291.15 × 20,896.80
  4. Step 4: Simplify right side
    37,891.95x = 1,092,717,703.32
  5. Step 5: Solve for x
    x = 1,092,717,703.32/37,891.95
  6. Step 6: Final answer
    x = 28,837.73

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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.