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Finding the Fourth Proportional to 44,614.50, 66,947.68 and 19,990.50

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Solution

The fourth proportional to 44,614.50, 66,947.68 and 19,990.50 is: 29,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,614.50 : 66,947.68 = 19,990.50 : x
  2. Step 2: Convert to fraction form
    44,614.50/66,947.68 = 19,990.50/x
  3. Step 3: Cross multiply
    44,614.50x = 66,947.68 × 19,990.50
  4. Step 4: Simplify right side
    44,614.50x = 1,338,317,597.04
  5. Step 5: Solve for x
    x = 1,338,317,597.04/44,614.50
  6. Step 6: Final answer
    x = 29,997.37

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1.5x scale

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.