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Finding the Fourth Proportional to 53,620.80, 73,991.84 and 29,747.40

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Solution

The fourth proportional to 53,620.80, 73,991.84 and 29,747.40 is: 41,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,620.80 : 73,991.84 = 29,747.40 : x
  2. Step 2: Convert to fraction form
    53,620.80/73,991.84 = 29,747.40/x
  3. Step 3: Cross multiply
    53,620.80x = 73,991.84 × 29,747.40
  4. Step 4: Simplify right side
    53,620.80x = 2,201,064,712.48
  5. Step 5: Solve for x
    x = 2,201,064,712.48/53,620.80
  6. Step 6: Final answer
    x = 41,048.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.