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Finding the Fourth Proportional to 8,462.63, 11,679.66 and 4,927.79

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Solution

The fourth proportional to 8,462.63, 11,679.66 and 4,927.79 is: 6,801.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,462.63 : 11,679.66 = 4,927.79 : x
  2. Step 2: Convert to fraction form
    8,462.63/11,679.66 = 4,927.79/x
  3. Step 3: Cross multiply
    8,462.63x = 11,679.66 × 4,927.79
  4. Step 4: Simplify right side
    8,462.63x = 57,554,940.95
  5. Step 5: Solve for x
    x = 57,554,940.95/8,462.63
  6. Step 6: Final answer
    x = 6,801.07

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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.