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Finding the Fourth Proportional to 15,894.36, 23,786.35 and 9,887.97

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Solution

The fourth proportional to 15,894.36, 23,786.35 and 9,887.97 is: 14,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,894.36 : 23,786.35 = 9,887.97 : x
  2. Step 2: Convert to fraction form
    15,894.36/23,786.35 = 9,887.97/x
  3. Step 3: Cross multiply
    15,894.36x = 23,786.35 × 9,887.97
  4. Step 4: Simplify right side
    15,894.36x = 235,198,601.29
  5. Step 5: Solve for x
    x = 235,198,601.29/15,894.36
  6. Step 6: Final answer
    x = 14,797.62

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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.