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Finding the Fourth Proportional to 53,371.48, 73,653.42 and 31,015.48

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Solution

The fourth proportional to 53,371.48, 73,653.42 and 31,015.48 is: 42,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,371.48 : 73,653.42 = 31,015.48 : x
  2. Step 2: Convert to fraction form
    53,371.48/73,653.42 = 31,015.48/x
  3. Step 3: Cross multiply
    53,371.48x = 73,653.42 × 31,015.48
  4. Step 4: Simplify right side
    53,371.48x = 2,284,396,174.94
  5. Step 5: Solve for x
    x = 2,284,396,174.94/53,371.48
  6. Step 6: Final answer
    x = 42,801.81

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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.