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Finding the Fourth Proportional to 38,656.39, 53,348.90 and 22,743.92

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Solution

The fourth proportional to 38,656.39, 53,348.90 and 22,743.92 is: 31,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,656.39 : 53,348.90 = 22,743.92 : x
  2. Step 2: Convert to fraction form
    38,656.39/53,348.90 = 22,743.92/x
  3. Step 3: Cross multiply
    38,656.39x = 53,348.90 × 22,743.92
  4. Step 4: Simplify right side
    38,656.39x = 1,213,362,733.22
  5. Step 5: Solve for x
    x = 1,213,362,733.22/38,656.39
  6. Step 6: Final answer
    x = 31,388.41

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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.