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Finding the Fourth Proportional to 19,717.80, 29,559.07 and 7,234.93

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Solution

The fourth proportional to 19,717.80, 29,559.07 and 7,234.93 is: 10,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.80 : 29,559.07 = 7,234.93 : x
  2. Step 2: Convert to fraction form
    19,717.80/29,559.07 = 7,234.93/x
  3. Step 3: Cross multiply
    19,717.80x = 29,559.07 × 7,234.93
  4. Step 4: Simplify right side
    19,717.80x = 213,857,697.73
  5. Step 5: Solve for x
    x = 213,857,697.73/19,717.80
  6. Step 6: Final answer
    x = 10,845.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.