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Finding the Fourth Proportional to 37,481.58, 51,722.55 and 20,713.50

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Solution

The fourth proportional to 37,481.58, 51,722.55 and 20,713.50 is: 28,583.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,481.58 : 51,722.55 = 20,713.50 : x
  2. Step 2: Convert to fraction form
    37,481.58/51,722.55 = 20,713.50/x
  3. Step 3: Cross multiply
    37,481.58x = 51,722.55 × 20,713.50
  4. Step 4: Simplify right side
    37,481.58x = 1,071,355,039.43
  5. Step 5: Solve for x
    x = 1,071,355,039.43/37,481.58
  6. Step 6: Final answer
    x = 28,583.51

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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.