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Finding the Fourth Proportional to 61,700.39, 92,550.55 and 20,147.39

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Solution

The fourth proportional to 61,700.39, 92,550.55 and 20,147.39 is: 30,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,700.39 : 92,550.55 = 20,147.39 : x
  2. Step 2: Convert to fraction form
    61,700.39/92,550.55 = 20,147.39/x
  3. Step 3: Cross multiply
    61,700.39x = 92,550.55 × 20,147.39
  4. Step 4: Simplify right side
    61,700.39x = 1,864,652,025.56
  5. Step 5: Solve for x
    x = 1,864,652,025.56/61,700.39
  6. Step 6: Final answer
    x = 30,221.07

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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.