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Finding the Fourth Proportional to 36,788.80, 55,218.84 and 34,790.80

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Solution

The fourth proportional to 36,788.80, 55,218.84 and 34,790.80 is: 52,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,788.80 : 55,218.84 = 34,790.80 : x
  2. Step 2: Convert to fraction form
    36,788.80/55,218.84 = 34,790.80/x
  3. Step 3: Cross multiply
    36,788.80x = 55,218.84 × 34,790.80
  4. Step 4: Simplify right side
    36,788.80x = 1,921,107,618.67
  5. Step 5: Solve for x
    x = 1,921,107,618.67/36,788.80
  6. Step 6: Final answer
    x = 52,219.90

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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.