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Finding the Fourth Proportional to 15,907.94, 21,952.22 and 8,834.30

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Solution

The fourth proportional to 15,907.94, 21,952.22 and 8,834.30 is: 12,190.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.94 : 21,952.22 = 8,834.30 : x
  2. Step 2: Convert to fraction form
    15,907.94/21,952.22 = 8,834.30/x
  3. Step 3: Cross multiply
    15,907.94x = 21,952.22 × 8,834.30
  4. Step 4: Simplify right side
    15,907.94x = 193,932,497.15
  5. Step 5: Solve for x
    x = 193,932,497.15/15,907.94
  6. Step 6: Final answer
    x = 12,190.92

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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.