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Finding the Fourth Proportional to 39,692.40, 59,581.80 and 22,196.40

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Solution

The fourth proportional to 39,692.40, 59,581.80 and 22,196.40 is: 33,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,692.40 : 59,581.80 = 22,196.40 : x
  2. Step 2: Convert to fraction form
    39,692.40/59,581.80 = 22,196.40/x
  3. Step 3: Cross multiply
    39,692.40x = 59,581.80 × 22,196.40
  4. Step 4: Simplify right side
    39,692.40x = 1,322,501,465.52
  5. Step 5: Solve for x
    x = 1,322,501,465.52/39,692.40
  6. Step 6: Final answer
    x = 33,318.76

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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.