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Finding the Fourth Proportional to 37,078.70, 55,593.48 and 20,446.70

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Solution

The fourth proportional to 37,078.70, 55,593.48 and 20,446.70 is: 30,656.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,078.70 : 55,593.48 = 20,446.70 : x
  2. Step 2: Convert to fraction form
    37,078.70/55,593.48 = 20,446.70/x
  3. Step 3: Cross multiply
    37,078.70x = 55,593.48 × 20,446.70
  4. Step 4: Simplify right side
    37,078.70x = 1,136,703,207.52
  5. Step 5: Solve for x
    x = 1,136,703,207.52/37,078.70
  6. Step 6: Final answer
    x = 30,656.50

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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.