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Finding the Fourth Proportional to 19,883.87, 29,825.10 and 5,092.91

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Solution

The fourth proportional to 19,883.87, 29,825.10 and 5,092.91 is: 7,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.87 : 29,825.10 = 5,092.91 : x
  2. Step 2: Convert to fraction form
    19,883.87/29,825.10 = 5,092.91/x
  3. Step 3: Cross multiply
    19,883.87x = 29,825.10 × 5,092.91
  4. Step 4: Simplify right side
    19,883.87x = 151,896,400.92
  5. Step 5: Solve for x
    x = 151,896,400.92/19,883.87
  6. Step 6: Final answer
    x = 7,639.18

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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.