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Finding the Fourth Proportional to 15,896.42, 21,934.02 and 9,092.60

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Solution

The fourth proportional to 15,896.42, 21,934.02 and 9,092.60 is: 12,546.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896.42 : 21,934.02 = 9,092.60 : x
  2. Step 2: Convert to fraction form
    15,896.42/21,934.02 = 9,092.60/x
  3. Step 3: Cross multiply
    15,896.42x = 21,934.02 × 9,092.60
  4. Step 4: Simplify right side
    15,896.42x = 199,437,270.25
  5. Step 5: Solve for x
    x = 199,437,270.25/15,896.42
  6. Step 6: Final answer
    x = 12,546.05

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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.