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Finding the Fourth Proportional to 15,907.86, 21,952.53 and 8,834.04

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Solution

The fourth proportional to 15,907.86, 21,952.53 and 8,834.04 is: 12,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.86 : 21,952.53 = 8,834.04 : x
  2. Step 2: Convert to fraction form
    15,907.86/21,952.53 = 8,834.04/x
  3. Step 3: Cross multiply
    15,907.86x = 21,952.53 × 8,834.04
  4. Step 4: Simplify right side
    15,907.86x = 193,929,528.12
  5. Step 5: Solve for x
    x = 193,929,528.12/15,907.86
  6. Step 6: Final answer
    x = 12,190.80

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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.