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Finding the Fourth Proportional to 54,224.70, 81,229.05 and 47,730.30

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Solution

The fourth proportional to 54,224.70, 81,229.05 and 47,730.30 is: 71,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,224.70 : 81,229.05 = 47,730.30 : x
  2. Step 2: Convert to fraction form
    54,224.70/81,229.05 = 47,730.30/x
  3. Step 3: Cross multiply
    54,224.70x = 81,229.05 × 47,730.30
  4. Step 4: Simplify right side
    54,224.70x = 3,877,086,925.22
  5. Step 5: Solve for x
    x = 3,877,086,925.22/54,224.70
  6. Step 6: Final answer
    x = 71,500.38

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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.