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Finding the Fourth Proportional to 47,221.58, 70,809.78 and 27,505.76

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Solution

The fourth proportional to 47,221.58, 70,809.78 and 27,505.76 is: 41,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,221.58 : 70,809.78 = 27,505.76 : x
  2. Step 2: Convert to fraction form
    47,221.58/70,809.78 = 27,505.76/x
  3. Step 3: Cross multiply
    47,221.58x = 70,809.78 × 27,505.76
  4. Step 4: Simplify right side
    47,221.58x = 1,947,676,814.33
  5. Step 5: Solve for x
    x = 1,947,676,814.33/47,221.58
  6. Step 6: Final answer
    x = 41,245.48

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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.