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Finding the Fourth Proportional to 15,650.94, 21,593.98 and 8,934.14

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Solution

The fourth proportional to 15,650.94, 21,593.98 and 8,934.14 is: 12,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,650.94 : 21,593.98 = 8,934.14 : x
  2. Step 2: Convert to fraction form
    15,650.94/21,593.98 = 8,934.14/x
  3. Step 3: Cross multiply
    15,650.94x = 21,593.98 × 8,934.14
  4. Step 4: Simplify right side
    15,650.94x = 192,923,640.48
  5. Step 5: Solve for x
    x = 192,923,640.48/15,650.94
  6. Step 6: Final answer
    x = 12,326.65

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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.