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Finding the Fourth Proportional to 53,759, 74,183.90 and 29,884.80

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Solution

The fourth proportional to 53,759, 74,183.90 and 29,884.80 is: 41,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,759 : 74,183.90 = 29,884.80 : x
  2. Step 2: Convert to fraction form
    53,759/74,183.90 = 29,884.80/x
  3. Step 3: Cross multiply
    53,759x = 74,183.90 × 29,884.80
  4. Step 4: Simplify right side
    53,759x = 2,216,971,014.72
  5. Step 5: Solve for x
    x = 2,216,971,014.72/53,759
  6. Step 6: Final answer
    x = 41,239.07

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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.