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Finding the Fourth Proportional to 31,840.51, 43,939.03 and 17,692.99

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Solution

The fourth proportional to 31,840.51, 43,939.03 and 17,692.99 is: 24,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.51 : 43,939.03 = 17,692.99 : x
  2. Step 2: Convert to fraction form
    31,840.51/43,939.03 = 17,692.99/x
  3. Step 3: Cross multiply
    31,840.51x = 43,939.03 × 17,692.99
  4. Step 4: Simplify right side
    31,840.51x = 777,412,818.40
  5. Step 5: Solve for x
    x = 777,412,818.40/31,840.51
  6. Step 6: Final answer
    x = 24,415.84

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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.