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Finding the Fourth Proportional to 19,996.48, 27,539 and 19,560.48

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Solution

The fourth proportional to 19,996.48, 27,539 and 19,560.48 is: 26,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.48 : 27,539 = 19,560.48 : x
  2. Step 2: Convert to fraction form
    19,996.48/27,539 = 19,560.48/x
  3. Step 3: Cross multiply
    19,996.48x = 27,539 × 19,560.48
  4. Step 4: Simplify right side
    19,996.48x = 538,676,058.72
  5. Step 5: Solve for x
    x = 538,676,058.72/19,996.48
  6. Step 6: Final answer
    x = 26,938.54

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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.