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Finding the Fourth Proportional to 30,380.93, 45,483.14 and 17,692.00

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Solution

The fourth proportional to 30,380.93, 45,483.14 and 17,692.00 is: 26,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.93 : 45,483.14 = 17,692.00 : x
  2. Step 2: Convert to fraction form
    30,380.93/45,483.14 = 17,692.00/x
  3. Step 3: Cross multiply
    30,380.93x = 45,483.14 × 17,692.00
  4. Step 4: Simplify right side
    30,380.93x = 804,687,813.96
  5. Step 5: Solve for x
    x = 804,687,813.96/30,380.93
  6. Step 6: Final answer
    x = 26,486.61

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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.