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Finding the Fourth Proportional to 44,580.20, 66,860.70 and 19,620.20

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Solution

The fourth proportional to 44,580.20, 66,860.70 and 19,620.20 is: 29,426.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,580.20 : 66,860.70 = 19,620.20 : x
  2. Step 2: Convert to fraction form
    44,580.20/66,860.70 = 19,620.20/x
  3. Step 3: Cross multiply
    44,580.20x = 66,860.70 × 19,620.20
  4. Step 4: Simplify right side
    44,580.20x = 1,311,820,306.14
  5. Step 5: Solve for x
    x = 1,311,820,306.14/44,580.20
  6. Step 6: Final answer
    x = 29,426.07

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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.