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Finding the Fourth Proportional to 19,553.98, 26,980.78 and 11,593.30

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Solution

The fourth proportional to 19,553.98, 26,980.78 and 11,593.30 is: 15,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.98 : 26,980.78 = 11,593.30 : x
  2. Step 2: Convert to fraction form
    19,553.98/26,980.78 = 11,593.30/x
  3. Step 3: Cross multiply
    19,553.98x = 26,980.78 × 11,593.30
  4. Step 4: Simplify right side
    19,553.98x = 312,796,276.77
  5. Step 5: Solve for x
    x = 312,796,276.77/19,553.98
  6. Step 6: Final answer
    x = 15,996.55

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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.