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Finding the Fourth Proportional to 9,144.54, 12,619.49 and 4,952.79

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Solution

The fourth proportional to 9,144.54, 12,619.49 and 4,952.79 is: 6,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.54 : 12,619.49 = 4,952.79 : x
  2. Step 2: Convert to fraction form
    9,144.54/12,619.49 = 4,952.79/x
  3. Step 3: Cross multiply
    9,144.54x = 12,619.49 × 4,952.79
  4. Step 4: Simplify right side
    9,144.54x = 62,501,659.11
  5. Step 5: Solve for x
    x = 62,501,659.11/9,144.54
  6. Step 6: Final answer
    x = 6,834.86

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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.