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Finding the Fourth Proportional to 22,692.84, 31,311.48 and 13,259.58

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Solution

The fourth proportional to 22,692.84, 31,311.48 and 13,259.58 is: 18,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,692.84 : 31,311.48 = 13,259.58 : x
  2. Step 2: Convert to fraction form
    22,692.84/31,311.48 = 13,259.58/x
  3. Step 3: Cross multiply
    22,692.84x = 31,311.48 × 13,259.58
  4. Step 4: Simplify right side
    22,692.84x = 415,177,073.98
  5. Step 5: Solve for x
    x = 415,177,073.98/22,692.84
  6. Step 6: Final answer
    x = 18,295.51

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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.