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Finding the Fourth Proportional to 19,608.99, 29,404.95 and 7,124.85

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Solution

The fourth proportional to 19,608.99, 29,404.95 and 7,124.85 is: 10,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,608.99 : 29,404.95 = 7,124.85 : x
  2. Step 2: Convert to fraction form
    19,608.99/29,404.95 = 7,124.85/x
  3. Step 3: Cross multiply
    19,608.99x = 29,404.95 × 7,124.85
  4. Step 4: Simplify right side
    19,608.99x = 209,505,858.01
  5. Step 5: Solve for x
    x = 209,505,858.01/19,608.99
  6. Step 6: Final answer
    x = 10,684.17

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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.