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Finding the Fourth Proportional to 38,796.19, 53,538.79 and 22,029.19

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Solution

The fourth proportional to 38,796.19, 53,538.79 and 22,029.19 is: 30,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.19 : 53,538.79 = 22,029.19 : x
  2. Step 2: Convert to fraction form
    38,796.19/53,538.79 = 22,029.19/x
  3. Step 3: Cross multiply
    38,796.19x = 53,538.79 × 22,029.19
  4. Step 4: Simplify right side
    38,796.19x = 1,179,415,988.36
  5. Step 5: Solve for x
    x = 1,179,415,988.36/38,796.19
  6. Step 6: Final answer
    x = 30,400.31

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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.