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Finding the Fourth Proportional to 53,988.33, 74,504.43 and 31,341

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Solution

The fourth proportional to 53,988.33, 74,504.43 and 31,341 is: 43,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,988.33 : 74,504.43 = 31,341 : x
  2. Step 2: Convert to fraction form
    53,988.33/74,504.43 = 31,341/x
  3. Step 3: Cross multiply
    53,988.33x = 74,504.43 × 31,341
  4. Step 4: Simplify right side
    53,988.33x = 2,335,043,340.63
  5. Step 5: Solve for x
    x = 2,335,043,340.63/53,988.33
  6. Step 6: Final answer
    x = 43,250.89

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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.