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Finding the Fourth Proportional to 37,708.70, 56,563.05 and 20,212.70

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Solution

The fourth proportional to 37,708.70, 56,563.05 and 20,212.70 is: 30,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,708.70 : 56,563.05 = 20,212.70 : x
  2. Step 2: Convert to fraction form
    37,708.70/56,563.05 = 20,212.70/x
  3. Step 3: Cross multiply
    37,708.70x = 56,563.05 × 20,212.70
  4. Step 4: Simplify right side
    37,708.70x = 1,143,291,960.74
  5. Step 5: Solve for x
    x = 1,143,291,960.74/37,708.70
  6. Step 6: Final answer
    x = 30,319.05

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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.