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Finding the Fourth Proportional to 19,371.68, 26,745.36 and 11,924

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Solution

The fourth proportional to 19,371.68, 26,745.36 and 11,924 is: 16,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.68 : 26,745.36 = 11,924 : x
  2. Step 2: Convert to fraction form
    19,371.68/26,745.36 = 11,924/x
  3. Step 3: Cross multiply
    19,371.68x = 26,745.36 × 11,924
  4. Step 4: Simplify right side
    19,371.68x = 318,911,672.64
  5. Step 5: Solve for x
    x = 318,911,672.64/19,371.68
  6. Step 6: Final answer
    x = 16,462.78

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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.