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Finding the Fourth Proportional to 38,660.69, 53,346.76 and 22,739.33

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Solution

The fourth proportional to 38,660.69, 53,346.76 and 22,739.33 is: 31,377.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.69 : 53,346.76 = 22,739.33 : x
  2. Step 2: Convert to fraction form
    38,660.69/53,346.76 = 22,739.33/x
  3. Step 3: Cross multiply
    38,660.69x = 53,346.76 × 22,739.33
  4. Step 4: Simplify right side
    38,660.69x = 1,213,069,580.07
  5. Step 5: Solve for x
    x = 1,213,069,580.07/38,660.69
  6. Step 6: Final answer
    x = 31,377.34

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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.