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Finding the Fourth Proportional to 12,767.88, 19,143.84 and 5,746.44

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Solution

The fourth proportional to 12,767.88, 19,143.84 and 5,746.44 is: 8,616.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.88 : 19,143.84 = 5,746.44 : x
  2. Step 2: Convert to fraction form
    12,767.88/19,143.84 = 5,746.44/x
  3. Step 3: Cross multiply
    12,767.88x = 19,143.84 × 5,746.44
  4. Step 4: Simplify right side
    12,767.88x = 110,008,927.93
  5. Step 5: Solve for x
    x = 110,008,927.93/12,767.88
  6. Step 6: Final answer
    x = 8,616.07

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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.