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Finding the Fourth Proportional to 17,752.92, 26,629.20 and 7,889.64

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Solution

The fourth proportional to 17,752.92, 26,629.20 and 7,889.64 is: 11,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,752.92 : 26,629.20 = 7,889.64 : x
  2. Step 2: Convert to fraction form
    17,752.92/26,629.20 = 7,889.64/x
  3. Step 3: Cross multiply
    17,752.92x = 26,629.20 × 7,889.64
  4. Step 4: Simplify right side
    17,752.92x = 210,094,801.49
  5. Step 5: Solve for x
    x = 210,094,801.49/17,752.92
  6. Step 6: Final answer
    x = 11,834.38

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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.