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Finding the Fourth Proportional to 29,617.40, 44,433.48 and 20,869.40

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Solution

The fourth proportional to 29,617.40, 44,433.48 and 20,869.40 is: 31,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,617.40 : 44,433.48 = 20,869.40 : x
  2. Step 2: Convert to fraction form
    29,617.40/44,433.48 = 20,869.40/x
  3. Step 3: Cross multiply
    29,617.40x = 44,433.48 × 20,869.40
  4. Step 4: Simplify right side
    29,617.40x = 927,300,067.51
  5. Step 5: Solve for x
    x = 927,300,067.51/29,617.40
  6. Step 6: Final answer
    x = 31,309.30

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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.