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Finding the Fourth Proportional to 31,672.08, 47,493.48 and 17,821.08

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Solution

The fourth proportional to 31,672.08, 47,493.48 and 17,821.08 is: 26,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672.08 : 47,493.48 = 17,821.08 : x
  2. Step 2: Convert to fraction form
    31,672.08/47,493.48 = 17,821.08/x
  3. Step 3: Cross multiply
    31,672.08x = 47,493.48 × 17,821.08
  4. Step 4: Simplify right side
    31,672.08x = 846,385,106.56
  5. Step 5: Solve for x
    x = 846,385,106.56/31,672.08
  6. Step 6: Final answer
    x = 26,723.38

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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.