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Finding the Fourth Proportional to 31,995.80, 44,156.34 and 18,567

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Solution

The fourth proportional to 31,995.80, 44,156.34 and 18,567 is: 25,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.80 : 44,156.34 = 18,567 : x
  2. Step 2: Convert to fraction form
    31,995.80/44,156.34 = 18,567/x
  3. Step 3: Cross multiply
    31,995.80x = 44,156.34 × 18,567
  4. Step 4: Simplify right side
    31,995.80x = 819,850,764.78
  5. Step 5: Solve for x
    x = 819,850,764.78/31,995.80
  6. Step 6: Final answer
    x = 25,623.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.