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Finding the Fourth Proportional to 71,759.20, 107,595.60 and 36,767.20

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Solution

The fourth proportional to 71,759.20, 107,595.60 and 36,767.20 is: 55,128.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,759.20 : 107,595.60 = 36,767.20 : x
  2. Step 2: Convert to fraction form
    71,759.20/107,595.60 = 36,767.20/x
  3. Step 3: Cross multiply
    71,759.20x = 107,595.60 × 36,767.20
  4. Step 4: Simplify right side
    71,759.20x = 3,955,988,944.32
  5. Step 5: Solve for x
    x = 3,955,988,944.32/71,759.20
  6. Step 6: Final answer
    x = 55,128.67

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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.