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Finding the Fourth Proportional to 19,536.68, 26,959 and 11,039.54

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Solution

The fourth proportional to 19,536.68, 26,959 and 11,039.54 is: 15,233.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,536.68 : 26,959 = 11,039.54 : x
  2. Step 2: Convert to fraction form
    19,536.68/26,959 = 11,039.54/x
  3. Step 3: Cross multiply
    19,536.68x = 26,959 × 11,039.54
  4. Step 4: Simplify right side
    19,536.68x = 297,614,958.86
  5. Step 5: Solve for x
    x = 297,614,958.86/19,536.68
  6. Step 6: Final answer
    x = 15,233.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.