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Finding the Fourth Proportional to 47,420.76, 71,129.52 and 22,472.76

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Solution

The fourth proportional to 47,420.76, 71,129.52 and 22,472.76 is: 33,708.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.76 : 71,129.52 = 22,472.76 : x
  2. Step 2: Convert to fraction form
    47,420.76/71,129.52 = 22,472.76/x
  3. Step 3: Cross multiply
    47,420.76x = 71,129.52 × 22,472.76
  4. Step 4: Simplify right side
    47,420.76x = 1,598,476,631.88
  5. Step 5: Solve for x
    x = 1,598,476,631.88/47,420.76
  6. Step 6: Final answer
    x = 33,708.37

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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.