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Finding the Fourth Proportional to 19,197.56, 26,497 and 12,471.48

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Solution

The fourth proportional to 19,197.56, 26,497 and 12,471.48 is: 17,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.56 : 26,497 = 12,471.48 : x
  2. Step 2: Convert to fraction form
    19,197.56/26,497 = 12,471.48/x
  3. Step 3: Cross multiply
    19,197.56x = 26,497 × 12,471.48
  4. Step 4: Simplify right side
    19,197.56x = 330,456,805.56
  5. Step 5: Solve for x
    x = 330,456,805.56/19,197.56
  6. Step 6: Final answer
    x = 17,213.48

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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.