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Finding the Fourth Proportional to 46,687.55, 69,965.71 and 20,337.03

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Solution

The fourth proportional to 46,687.55, 69,965.71 and 20,337.03 is: 30,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,687.55 : 69,965.71 = 20,337.03 : x
  2. Step 2: Convert to fraction form
    46,687.55/69,965.71 = 20,337.03/x
  3. Step 3: Cross multiply
    46,687.55x = 69,965.71 × 20,337.03
  4. Step 4: Simplify right side
    46,687.55x = 1,422,894,692.40
  5. Step 5: Solve for x
    x = 1,422,894,692.40/46,687.55
  6. Step 6: Final answer
    x = 30,476.97

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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.