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Finding the Fourth Proportional to 19,993, 27,592.26 and 12,539.56

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Solution

The fourth proportional to 19,993, 27,592.26 and 12,539.56 is: 17,305.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993 : 27,592.26 = 12,539.56 : x
  2. Step 2: Convert to fraction form
    19,993/27,592.26 = 12,539.56/x
  3. Step 3: Cross multiply
    19,993x = 27,592.26 × 12,539.56
  4. Step 4: Simplify right side
    19,993x = 345,994,799.81
  5. Step 5: Solve for x
    x = 345,994,799.81/19,993
  6. Step 6: Final answer
    x = 17,305.80

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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.