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Finding the Fourth Proportional to 19,561.70, 29,200.87 and 17,197.11

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Solution

The fourth proportional to 19,561.70, 29,200.87 and 17,197.11 is: 25,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.70 : 29,200.87 = 17,197.11 : x
  2. Step 2: Convert to fraction form
    19,561.70/29,200.87 = 17,197.11/x
  3. Step 3: Cross multiply
    19,561.70x = 29,200.87 × 17,197.11
  4. Step 4: Simplify right side
    19,561.70x = 502,170,594.98
  5. Step 5: Solve for x
    x = 502,170,594.98/19,561.70
  6. Step 6: Final answer
    x = 25,671.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.