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Finding the Fourth Proportional to 15,892.64, 21,896.46 and 11,636.48

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Solution

The fourth proportional to 15,892.64, 21,896.46 and 11,636.48 is: 16,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,892.64 : 21,896.46 = 11,636.48 : x
  2. Step 2: Convert to fraction form
    15,892.64/21,896.46 = 11,636.48/x
  3. Step 3: Cross multiply
    15,892.64x = 21,896.46 × 11,636.48
  4. Step 4: Simplify right side
    15,892.64x = 254,797,718.86
  5. Step 5: Solve for x
    x = 254,797,718.86/15,892.64
  6. Step 6: Final answer
    x = 16,032.44

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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.