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Finding the Fourth Proportional to 17,756.01, 26,639.79 and 11,856.88

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Solution

The fourth proportional to 17,756.01, 26,639.79 and 11,856.88 is: 17,789.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,756.01 : 26,639.79 = 11,856.88 : x
  2. Step 2: Convert to fraction form
    17,756.01/26,639.79 = 11,856.88/x
  3. Step 3: Cross multiply
    17,756.01x = 26,639.79 × 11,856.88
  4. Step 4: Simplify right side
    17,756.01x = 315,864,782.09
  5. Step 5: Solve for x
    x = 315,864,782.09/17,756.01
  6. Step 6: Final answer
    x = 17,789.18

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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.